Most People Don't Know How Bikes Work

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  • 게시일 2021. 11. 27.
  • Why are bicycles stable? The most common answer is gyroscopic effects, but this is not right. This video was sponsored by Kiwico. Get 50% off your first month of any crate at kiwico.com/veritasium50
    Huge thanks to Rick Cavallaro for creating this bike on short notice. Thanks to all the friends who participated in the filming. Rick was also responsible for the Blackbird Faster Than The Wind Downwind Cart. • Risking My Life To Set...
    Much of the information presented here on the stability of a riderless bicycle stems from original research at
    Delft bicycle.tudelft.nl/schwab/Bicy...
    and
    Cornell ruina.tam.cornell.edu/research...
    This line of bicycle-balance research was initiated by Jim Papadopoulos: www.nature.com/articles/535338a
    Great videos on bikes and counter-steering:
    MinutePhysics: How Do Bikes Stay Up? • How Do Bikes Stay Up?
    MinutePhysics: The Counterintuitive Physics of Turning a Bike: • The Counterintuitive P...
    Why Bicycles Do Not Fall - Arend Schwab TED talk: • Why bicycles do not fa...
    Today I Found Out: We Still Don't Know How Bicycles Work • We Still Don’t Know Ho...
    TU Delft - Smart motor in handlebars prevents bicycles from falling over: • TU Delft - Smart motor...
    Andy Ruina Explains How Bicycles Balance Themselves: • Andy Ruina explains ho...
    ▀▀▀
    More References:
    TU Delft Bicycle Site: bicycle.tudelft.nl/schwab/Bicy...
    Bicycle stability program: ruina.tam.cornell.edu/research...
    ▀▀▀
    Special thanks to Patreon supporters: Luis Felipe, Anton Ragin, Paul Peijzel, S S, Benedikt Heinen, Diffbot, Micah Mangione, Juan Benet, Ruslan Khroma, Richard Sundvall, Lee Redden, Sam Lutfi, MJP, Gnare, Nick DiCandilo, Dave Kircher, Edward Larsen, Burt Humburg, Blake Byers, Dumky, Mike Tung, Evgeny Skvortsov, Meekay, Ismail Öncü Usta, Crated Comments, Anna, Mac Malkawi, Michael Schneider, Oleksii Leonov, Jim Osmun, Tyson McDowell, Ludovic Robillard, Jim buckmaster, fanime96, Ruslan Khroma, Robert Blum, Vincent, Marinus Kuivenhoven, Alfred Wallace, Arjun Chakroborty, Joar Wandborg, Clayton Greenwell, Michael Krugman, Cy 'kkm' K'Nelson,Ron Neal
    ▀▀▀
    Written by Derek Muller
    Filmed by Trenton Oliver, Raquel Nuno and Derek Muller
    Edited by Derek Muller
    Music from Epidemic Sound and Jonny Hyman
    Produced by Derek Muller, Petr Lebedev and Emily Zhang

댓글 • 23K

  • @Kragatar
    @Kragatar 년 전 +6126

    I think the most impressive part of this is the human brain's ability to do something it doesn't even know it's doing.

    • @philipo8170
      @philipo8170 10 개월 전 +309

      Like how we intuitively learned what a parabola is playing catch. Long before it was formally discovered

    • @ham1872
      @ham1872 10 개월 전 +26

      Like Blinking

    • @philipo8170
      @philipo8170 10 개월 전 +120

      @@ham1872 that’s less impressive because it’s preprogrammed, not learned

    • @chickenbob562
      @chickenbob562 10 개월 전 +100

      well you know how to do it, because your subconscious understands it
      its just that your consciousness doesnt register it as the same
      its like that with a lot of stuff, like almost everything
      if you think about it, it feels like we are a slower and dumber version of our subconscious selfs

    • @ukkirot8264
      @ukkirot8264 9 개월 전 +27

      I mean that is how they teach you in school. You have to do something, remember something and do it without thinking about it. You can tell that Pi is Pi becouse its Pi and its made to calculate the circle and ahit but a lot less people know why Pi exist and why it works. Its scary how people are made to just "do" things and not undrestand them at all.

  • @ShortHax
    @ShortHax 2 년 전 +64755

    It’s easy to build a rocket. It’s not like it’s bicycle-science

  • @bobbyhill4118
    @bobbyhill4118 년 전 +2583

    I remember learning to ride a bike with no hands at age 13. Letting go of the handle bars completely made me fall once and I cut myself up pretty good. I was laying in the middle of the street for about 4 minutes soaking in all the pain. But I got it down and learned to be aware of the steering along with my leverages. Only really works when you’re going in one direction at a high speed, but you can do wide turns with no hands

    • @NotNecessarilyCringe
      @NotNecessarilyCringe 년 전 +18

      I can

    • @justind4763
      @justind4763 년 전 +229

      I used to ride all around town with no hands. One day I went down a hill and rounded a bend at the bottom of the hill. My front tire went into a small but deep pot hole that I didnt even see. I smashed my face and had to go to the ER and a plastic surgeon to fix the hole in my nose.

    • @EvpatijK.
      @EvpatijK. 년 전 +5

      @@justind4763 🤔🤔🤔

    • @petersmythe6462
      @petersmythe6462 년 전 +82

      Not just wide turns at high speed. You can start with no hands, get up to speed with no hands, orbit people with no hands... I use my hands on difficult terrain or when I need the brakes.

    • @justind4763
      @justind4763 년 전 +6

      @@EvpatijK. what?

  • @VictorbrineSC
    @VictorbrineSC 년 전 +1812

    The fact that there is still research and some mysteries for such a common every-day object is insane

    • @Prophes0r
      @Prophes0r 10 개월 전 +102

      Not really.
      The more stuff you understand, the more you realize that you don't really understand those things.

    • @sharonmiller7213
      @sharonmiller7213 8 개월 전 +5

      I love it

    • @user-so2fp8tz9o
      @user-so2fp8tz9o 5 개월 전 +3

      Yeah really only for science-fans, not people with an actual scientist mindset. We dont know most things about everything
      We cant even predict the motion pattern of a swinging 2 bar linkage

    • @urk5204
      @urk5204 4 개월 전 +3

      It’s wild to think we still don’t entirely understand a human-made device invented nearly 140 years ago. It’s not like there haven’t been advancements to it since then either, and all without entirely understanding the how of it all. Human intuition is incredible

    • @lucagethmann7682
      @lucagethmann7682 3 개월 전 +1

      It gets even weirder. The language which is used to describe the concept of a bike is itself not a bike, right? So in order to understand something you need to create something else? It gets even weirder, but I'll stop now before the lizard people find me.

  • @dogsrocks1028
    @dogsrocks1028 2 년 전 +2455

    To me its incredible how humans just learn to do these things subconsciously. Noone tells you that when youre a kid, you just try over and over again until suddenly you do it right without even knowing what youre doing differently.
    Imagine how many things you do right without even understanding why oder what exactly it is youre doing. Absolutely incredible

    • @VengeanceCore
      @VengeanceCore 2 년 전 +30

      I did actually tell my kid this, I didnt know this was something people didn't know. Its also very obvious that you have to do this on a motorbike.

    • @AstralArbourSys
      @AstralArbourSys 2 년 전 +36

      @@VengeanceCore My dad explained this to me when I was learning to ride a bike and it actually screwed me up, cause I was always actively trying to countersteer and I always went too far. But maybe that's just me.

    • @vanceezinwoke3692
      @vanceezinwoke3692 2 년 전 +13

      @I'm just here for the asmr 💕 riding a bike doesn't give you confidence
      You find that within yourself, I think

    • @bobsmith6544
      @bobsmith6544 2 년 전 +2

      Dumbest statement ever bro LOL.

    • @dogsrocks1028
      @dogsrocks1028 2 년 전 +1

      @@bobsmith6544 why you gotta do me like that though D:

  • @LyricWulf
    @LyricWulf 2 년 전 +20346

    "Turn right to go left... Hm..." -Lightning McQueen, moments before disaster

  • @Harry.Dresden
    @Harry.Dresden 년 전 +630

    This is taught explicitly when you go through motorcycle courses, it’s even more important to know this when operating at multiple times the speed and hundreds of pounds more weight to that you can safely operate the vehicle

    • @AndyDentPerth
      @AndyDentPerth 4 개월 전 +9

      Motorcycle turning is very different although initiated the same.
      At very slow speeds you are relying on the centre of gravity to keep the bike upright and you turn by steering in the direction you want to go.
      At higher speeds, yes you initiate them with counter-steering but it's because you ARE using the gyroscopic effect - much faster wheel speeds with much heavier wheels.
      So there's not the second turn back that is shown in in this video with bicycles, after the counter-steering.
      These differences are even more dramatic when braking on a curve.
      I had to have a tendon reattached after crashing my motorbike the first time back on it in years after many years riding bicycles, because I didn't realise my muscle memory was all wrong, and ended up braking into a median strip because I braked in a straight line.

    • @SILVERK5
      @SILVERK5 4 개월 전 +15

      @@AndyDentPerth All 2 wheels vehicles turn the same way, by leaning into the turn and using tires with rounded thread profile to allow it (as opposed to car's flat ones). The major difference between bike vs bicycle is the effect of the rider's body to initialte a turn. A lot on the bicycle, less on the motorcyle where the proportion of you weight over the total weight is not as great, plus the heavier wheels have more inertia (gyroscopic effect)...Thus steeting with the handlebar is more efficient than steering only with your body (same for the bicycle by the way, especially at high speed). But fondamentaly, they are the same.
      And as explained in the video, turning the handlebars to the right will make the vehicle "fall" to the left and thus turn left, and vice versa.

    • @jridenour31
      @jridenour31 3 개월 전 +12

      ​@AndyDentPerth Everything you just said is wrong. Turning a motorcycle at any speed is initiated and stopped by counter steering. You're not using the gyroscope effect, you're fighting it. The second turn back into the direction of the turn after the initial counter steer is also done on a motorcycle. You might not notice it but that doesn't change the fact that it's happening.

    • @ashodmartirossian6487
      @ashodmartirossian6487 2 개월 전

      And that is the only way to fight the side winds.

    • @venanziadorromatagni1641
      @venanziadorromatagni1641 개월 전 +2

      I realised this when, as a teenager working at a fast food restaurant I was asked to take their comically oversized tricycle and go and pick up trash around the restaurant.
      Being used to riding a bike simply by leaning, and counter-steering, but never having thought about it, I just kept going into the wrong direction, in public, on a freaking tricycle!
      I provided very good amusement to my colleagues that day (And refused to ever ride the stupid thing afterwards)

  • @fountains4268
    @fountains4268 년 전 +785

    I learned to ride a motorcycle with a man that taught me counter-steering where you push away from your body with your hand on the side that you want to initiate a turn. It was so counterintuitive to hear, but once I learned how the bike reacted underneath me, I realized that I was doing it instinctively.
    You push away and as you "fall" into the turn, you then turn in to complete it.
    Learning how to ride a bike (in theory) all over again by having someone describe the actual movements rather than the instincts was jarring to me. I still think about it every now and then (riding motorcycles for over 20 years) and it still trips my brain when I move the set to the right to steer left.
    Thanks for the video, great stuff.

    • @EtaSoon777
      @EtaSoon777 년 전 +2

      Is a 100mph high speed sweeper the same or is the counter steer a endless phenomenon? Head tube angle 📐 and bike style also comes play. Cafe bike with steep head tube angle are the extreme examples. Counter steering is best demonstrated by viewing a remote controlled motorcycle. Crazy

    • @AAMech
      @AAMech 년 전 +7

      @@EtaSoon777 It depends whether you're talking about from a practical perspective or a mechanical perspective. From a mechanical perspective, motorcycles/bicycles steer in turns at any speed... "counter steering" is just a methodology for explaining the technique used to control it.
      From a practical perspective, in a high speed turn you have to keep pressure on the inside bar in order to maintain the turn. If you release pressure, front wheel castor (even on a bike with a steep head tube angle) causes the bike to steer deeper into the turn until the point where the wheels are brought back under the center of gravity.

    • @EvpatijK.
      @EvpatijK. 년 전

      Контрруление помогает только на уклонах, посмотри внимательно на гонщиков MotoGP...

    • @dakota9821
      @dakota9821 년 전

      @Observ45er You figure that out yourself? 🙄

    • @stevezelaznik5872
      @stevezelaznik5872 년 전 +2

      @@EvpatijK. Counter-steering works on flat surfaces as well. You just have to be going fast enough. (Hopefully Google translates my response well enough)

  • @danielmorrisonrhymes
    @danielmorrisonrhymes 2 년 전 +4699

    "Understanding how bicycles work is still an active area of research". This really is pretty extraordinary.

    • @nenmaster5218
      @nenmaster5218 2 년 전 +16

      Veritasium-Fans, I have the Hobby to recommen Science-KRplusrs to Fans of Science-KRplus-Channels.

    • @Chimera_Photography
      @Chimera_Photography 년 전 +149

      What the hell are we doing trying to get to mars when we haven’t figured out bicycles yet 😂

    • @obviouslyanonymous
      @obviouslyanonymous 년 전 +57

      Gives me the same energy as inventing the Rubik's Cube and then not being able to resolve it

    • @nenmaster5218
      @nenmaster5218 년 전 +4

      @@Chimera_Photography XD

    • @StraightestDakregor
      @StraightestDakregor 년 전 +88

      It's always funny to me how humans can create things before actually understanding how they actually work

  • @z-beeblebrox
    @z-beeblebrox 2 년 전 +5842

    You know a design is perfect when a hundred or so years after it's invented, researchers are still studying how it works so well

    • @borncomatose
      @borncomatose 2 년 전 +109

      Exactly it's why the combustion engine should never go away

    • @z-beeblebrox
      @z-beeblebrox 2 년 전 +483

      @@borncomatose Unless you power your bike with lit farts, I think we're talking about two different things

    • @lilnibba2905
      @lilnibba2905 2 년 전 +62

      @@z-beeblebrox lit farts sounds much cooler to me

    • @Lazy_ness
      @Lazy_ness 2 년 전 +88

      The actual combustion engine is a cool thing, it’s just it’s fuel source. But still a really interesting piece of engineering, although not as simple as the bike tho.

    • @borncomatose
      @borncomatose 2 년 전 +4

      @@z-beeblebrox no because if it exists for years, stills works and still gets improvements then it's literally the same mental as you 🤣 lmao ur just slow

  • @SeanRice-rv6ml
    @SeanRice-rv6ml 10 개월 전 +133

    I built a reverse steering bike, and while it took about 2 years to be able to ride it well, it was very much like having to learn to ride a bike all over again (except now as an adult with all the analysis skills I have gained). I learned many things about how to ride a bike, but the most fun thing I learned was the element of steering you illustrate in this video. Many people know how to ride a bike, few know what they do to make it work. Thanks for the video.

    • @kjellg6532
      @kjellg6532 12 일 전

      They have one to borrow at the sience museum in Copehagen, Danmark.Takes some time to get "reprogammed"

  • @aka_miso
    @aka_miso 년 전 +307

    I remember as a kid my friends and I would try to balance on our bikes stationary and see who lasted the longest and we would end up frantically turning the wheel back and forth to stay up

    • @straytonox1492
      @straytonox1492 년 전 +24

      more like right and left if it was stationary ?

    • @symoneprice798
      @symoneprice798 9 개월 전

      Hahahahahahhahah. That’s funny

    • @user-so2fp8tz9o
      @user-so2fp8tz9o 5 개월 전

      How do you turn the wheels on a bike thats stationary and also touching the ground? That would make the bike move, no?

    • @uzoge
      @uzoge 5 개월 전 +2

      @@user-so2fp8tz9o guess they meant the handlebar

    • @elisha2358
      @elisha2358 2 개월 전

      ​@@user-so2fp8tz9o they were pedaling backwards

  • @yakbreeder
    @yakbreeder 2 년 전 +1994

    We were taught counter steering in our motorcycle rider safety course years ago. Several in the class just could NOT comprehend it. One guy almost got tossed from the class for being argumentative about it. The instructor told him that anyone who has ridden a bicycle, counter steers without knowing they are. He finally accepted that he was wrong and passed the course.

    • @TheKep
      @TheKep 2 년 전 +152

      I don’t know why they even teach “counter steering” like there is an alternative. If you don’t “counter steer” then you don’t ride a motorcycle lol.

    • @whiskytangofoxtrot_
      @whiskytangofoxtrot_ 2 년 전 +77

      @@TheKep I had found the way it was explained in class was way more complex than it actually was. But that is down to the instructor

    • @SteveGunn2
      @SteveGunn2 2 년 전 +49

      @@whiskytangofoxtrot_ I was going to comment the same thing. My instructor taught that if you want to go right you need to "press" on the right handlebar. It felt unnecessarily confusing, and was probably just better left not being said. People intuitively know how to steer as long as they know how to ride a bicycle.

    • @mactraynor6243
      @mactraynor6243 2 년 전 +17

      Sure -at low speeds motorcycles act the same way - At speed you "turn" the opposite way you want to go the entire time. Try it - going down the highway press forward on the left handle bar. The bike will lean left and turn left.

    • @MistedMind
      @MistedMind 2 년 전 +8

      @@mactraynor6243 To me it's the opposite order. To go left I lean left. But to prevent the bike from "falling over" I have to press left to counter steer.

  • @jjhbball
    @jjhbball 2 년 전 +3750

    To me, science often shows how incredible our intuition is. There is so much that we do "naturally" without understanding the mechanics. Sometimes we get it wrong, but I like the example of shooting a basketball. The physics involved are incredible, but people can train to put a ball in a hoop at a weird angle from incredible distance, under duress, and with remarkable consistency without a deep understanding of the mechanics.

    • @gerhardvaneeden5615
      @gerhardvaneeden5615 2 년 전 +32

      Lovely comment!

    • @calebr908
      @calebr908 2 년 전 +260

      And people can understand the mechanics and not be able to do it.

    • @reefosjay5407
      @reefosjay5407 2 년 전 +6

      I agree

    • @ZachTechnicolour
      @ZachTechnicolour 2 년 전 +144

      Or even simpler, being able to catch something thrown at you. Many intense mathematical calculations are subconsciously made in split seconds to know the trajectory of the object and where and when to catch it.

    • @jacobveryberry
      @jacobveryberry 2 년 전 +41

      As a shooter and basketball player, please do not discredit the thousand of hours “in the lab” where we learn the mechanics and physics of putting the ball through the basket (no matter the conditions) through sheer repetition and proper coaching. It’s not like we’re doing math of course but we’re still learning and experiencing it through all of our senses. The depth of understanding is subjective I agree but “dumb jocks” often know their particular stuff “down to a science”.

  • @muhammadtaimooradil6115
    @muhammadtaimooradil6115 7 개월 전 +29

    I am doing research in dynamic balance in human walking and this effect plays a major role in people walking without falling. I saw this video a couple of months ago but today I realized that his video has direct application to how bipedal creatures keep themselves stable. Thanks.

  • @trifortay
    @trifortay 년 전 +17

    the thing I love about riding a bike is that once you know how you never forget how, and riding one is just completely intuitive

  • @keleighshepherd345
    @keleighshepherd345 2 년 전 +1554

    I'm a radiotherapy engineer. At my job interview for my current position, I was asked to explain in layman's terms how a bicycle works. I explained how the pedals make motion through the gears, and then rapidly dissembled with "as to how a bike stays upright in motion? I have no idea, I'm not a bicycle physicist" AND I STILL GOT THE JOB

    • @bobbyboobs8816
      @bobbyboobs8816 2 년 전 +333

      As an interviewer you would have got extra points for that. It is essential that people in technical positions understand the extend of their knowledge and are honourable enough to admit such even in high pressure situations where revealing the limit of your knowledge could be detrimental to you personally. The worst answer in the world is to try and bluff your way through.

    • @apekshamaheshwari9666
      @apekshamaheshwari9666 2 년 전 +19

      but how do hula hoops stay in equilibrium during motion but falls when its stationary?

    • @Anudorini-Talah
      @Anudorini-Talah 2 년 전 +9

      @@apekshamaheshwari9666 speed invert gravity force. sam,e with the bike wheel experiment horizontal

    • @carljensen5284
      @carljensen5284 2 년 전 +66

      They were just hoping you knew the answer so they could take credit at the nobel prize ceremony

    • @dreamwolf7302
      @dreamwolf7302 2 년 전 +43

      Questions like that are actually geared towards to checking the ability of the applicant to acknowledge when they dont understand something.
      Because in any medical field, the biggest danger to patients, are professionals who cant accept that they dont know something.

  • @YourPalKindred
    @YourPalKindred 2 년 전 +1846

    I never realised how intelligently built bikes were. It looks so simple but it's such a genius creation

    • @conalbennett8259
      @conalbennett8259 2 년 전 +118

      The people who designed them probably didn't realise either. It was just an accident that they discovered the principles shown in the video.

    • @scragjonezv4843
      @scragjonezv4843 2 년 전 +54

      They haven't changed very radically in the 150 some odd years since we pretty much figured them out. Only took us about 60-70 years from the very first two wheeler to basically reach the peak of bicycle tech.
      Kinda strange that no one had gotten around to inventing a bicycle until just 200 years ago. The wheel had been around for a good long while already. Surely the other components of a bike could've been readily cobbled together for a few hundred years before they finally were. I dunno.

    • @beebait1464
      @beebait1464 2 년 전 +27

      @@conalbennett8259 it was kinda just an iterative thing. Early bikes looks funky and they just kept what worked and replaced what didnt work.

    • @ultramaga4075
      @ultramaga4075 2 년 전 +3

      Yah a steering wheel...deep

    • @YourPalKindred
      @YourPalKindred 2 년 전 +7

      @@ultramaga4075 see that's how I used to feel, but now that I know the mechanics behind it it feels a lot more impressive

  • @abehartshorne6028
    @abehartshorne6028 7 개월 전 +39

    I find this very interesting. I ride my bike to work every day. I find this to be true at only low speeds. At higher speeds you lean into the bend before to turn the handle bars, so there is no leaning the opposite direction first. This can also be done at low speeds, but naturally you do go the opposite way first if not thinking about it. Pretty cool.

    • @oldmanandthesea3384
      @oldmanandthesea3384 6 개월 전 +5

      Same here. I have to be going pretty slow to use the counter steer to turn. To stay balanced at low speed I of course let my instinctive counter steer take over.

    • @hughjardon3538
      @hughjardon3538 5 개월 전

      It's the opposite way round. Get up some speed, take your hands off the bars and see how fast you can turn, then try the same at low speed.

    • @abehartshorne6028
      @abehartshorne6028 4 개월 전 +1

      @@Observ45er you can shift your centre of gravity easily, move your head, shoulders, upper body mas, even lower body mas if standing, and the knee on the side you want to move outwards, and your entire weight has shifted. Then the bike will follow and lean that direction also. Centre of gravity is easily manipulated on a bike.

    • @abehartshorne6028
      @abehartshorne6028 4 개월 전 +3

      @@Observ45er ok, get on a bike and try it. It works. Without getting all scientific, you can just get on a bike and try. It's the same as standing up. Do it, stand up now. Lean to the side, you will start to fall to the side, not the opposite side, but the side you lean.
      On a swing you have your pivot above you, you are the force, and the reaction happens below you, you move the opposite way.
      Put it this way, roll down hill on a bike, lean. Just lean to the right let's say. If you want to, you can lean right, and not react, do not turn the handle bars, and just fall all the way to the ground. Or, you can lean to the right, and just like if you stand up right now and lean to the right, you will start to fall to the right. On the bike, as you start to fall, you turn you handle bars to the right and your force now goes into the bend.
      I mean try it. I test it on the way to work. I encourage you to get on a bike, roll down hill and just lean to the side, as if you are trying to topple over, which you can do, you can just lean and fall. But then follow the lean with the rotation of the handle bars and, boom, you are turning.
      Use science to understand the findings. In this case you don't need science to predict the outcome, it's just a bike, you can go and do it.
      I believe you may be imagining this as a stationary bike or slow moving. Where if trying to balance without moving, when you lean right, you will push the bike out left, to keep the gravity centre. But at a speed, when trying to turn, as in move to the right, you do not want gravity centre. You fall right and then follow with a turn to the right, and the force gets pushed into the ground.
      Ah, I mean, do the experiment. It proves itself.
      Alright, peace.

    • @oldmanandthesea3384
      @oldmanandthesea3384 4 개월 전 +4

      @@abehartshorne6028 Bingo. I was an elite cyclist in my youth. Road bikes work at speed for a reason. Your feet on the pedals just forms a triangle to the ground.
      Like walking, we are always just about to fall. I think this experiment
      needs to be revisited with pros and armatures. Plus different stiles of
      bikes and do it on the old Alameda Naval Air strip.

  • @jamzee_
    @jamzee_ 년 전 +32

    As a kid i somehow pieced together how to balance a bike without my hands on the bars and feet off the pedals. I felt like a king watching friends fail to sit on a stationary bike.

  • @yggdarsilyae6807
    @yggdarsilyae6807 2 년 전 +1274

    This is the piece of information I needed back at 4 years old learning how to ride a bike with my dad shouting "JUST TURN LEFT", it explains everything that felt wrong at the time before it "clicked" and I never worried about it again. This pedagogic injustice won't have remained unpunished

    • @alexgavinchuk5555
      @alexgavinchuk5555 2 년 전 +44

      Yes and no, if you were anything like my 4 year old is now, your dad could have tried to explain this to you till he was red in the face and it still would not made sense. I eventually stopped trying, but I really wanted to try and get this across as he was switching from training wheels where you actually turn the wheel the way you want to go.

    • @atriyakoller136
      @atriyakoller136 2 년 전 +17

      @@alexgavinchuk5555 exactly. A lot of things don't make sense when they are explained or presented at first. Speaking as a teacher. Sometimes you kind of have to break through the subject yourself before you understand that information that was given to you or even explained many times without you fully understanding it :(
      It can literally take years :(

    • @y-yyy
      @y-yyy 2 년 전 +30

      Oh training wheels... I think they are completely counterproductive to learning to ride a bike. They make you get used to a certain mechanism of riding, and then you're somehow supposed to learn a completely new way to ride a bike, fighting your subconscious and your reflexes? Imo it's deeply unhelpful. Just learning to ride a normal bike right away has to be easier.

    • @atriyakoller136
      @atriyakoller136 2 년 전 +5

      @@y-yyy am I correct in assuming that training wheels are the 2 wheels on the back wheel of the bike? They aren't called that in my native language (we simply call it a 4-wheel bicycle), hence the question.

    • @truemage170
      @truemage170 2 년 전 +7

      @@atriyakoller136 correct, that is the term used in America for them.

  • @beatbasher
    @beatbasher 2 년 전 +2295

    I've been struggling for years explaining countersteering to people, many people would respond with disbelief because they'd been riding bikes for years and couldn't get their heads round countersteering. Even my Dad looked at me like I was talking nonsense. Thanks for this video now I can send it to him and he might actually believe me.

    • @myrdhina
      @myrdhina 년 전 +60

      In that case, an even better example is the video: "consequences of not understanding counter-steering on a motorcycle".
      At first it's tough to watch, but they explain the rider is okay. It's very educational.

    • @colinubeh1180
      @colinubeh1180 년 전 +14

      I have no idea that I have been doing it every time I ride a bike until I watched this video.

    • @TheMohammadSamaeili
      @TheMohammadSamaeili 년 전 +2

      Good!

    • @1994AustinSmith
      @1994AustinSmith 년 전 +18

      Having not learned to bike until my 20's, I was aware of countersteering.
      Wasn't aware it was for balance. I just thought it was to make turns not so sharp. Like, get far right to begin the left turn sooner.
      My countersteering may be more pronounced though.

    • @SolDizZo
      @SolDizZo 년 전 +21

      The only thing I nitpick is why in the world people in small cars countersteer all the way into my lane before making their turn 🫠

  • @AdamasOldblade
    @AdamasOldblade 년 전 +41

    I am very glad I watched this video. The next time I rode my bike after seeing this video I was just super more aware of how the human body moves balance wise. It’s one of those things we unconsciously take for granted and for some reason I am glad this little thing was pointed out because I like being conscious about things taken for granted.

  • @zenkiethan
    @zenkiethan 년 전 +9

    You guys should do a video about drifting cars. a lot of the same principles apply especially caster/self steer. that’s the main reason drifting is possible. i’d love to see y’all go in depth with the physics of drifting as that would help a lot of people refine their technique and understanding of the sport.

  • @pzodeosrs
    @pzodeosrs 2 년 전 +827

    I recently taught a friend how to ride a bike. She had only tried once in her life and found steering incredibly difficult. Intuintively she was trying to just turn the handlebars and she kept falling. It was amazing to see how it suddenly clicked for and she was able to ride so smoothly after that.

    • @micahcantor7356
      @micahcantor7356 2 년 전 +70

      I learned how to ride a bike at 17. It took about 20-30 minutes of me on the street looking very similar to the people in the video, and then, all of a sudden, it clicked which was a very strange feeling.

    • @LexieGuilbert
      @LexieGuilbert 2 년 전 +4

      Special Ed 🤨

    • @Ok-but
      @Ok-but 2 년 전 +35

      @@LexieGuilbert 'flash news' some people dont know how to ride a bike

    • @Daniel-dj7fh
      @Daniel-dj7fh 2 년 전 +1

      If you're still teaching her, teach her how to ride slow before riding fast.

    • @ChaoticNeutralMatt
      @ChaoticNeutralMatt 2 년 전 +6

      @@LexieGuilbert I'm happy to know that you are the exception that learns everything immediately. Congratulations, I'm not sure how you get anything done when faced with actual difficulty.

  • @Captain-Cardboard
    @Captain-Cardboard 2 년 전 +3185

    You need to get Tom Scott to try this; he's the expert!

  • @clintonshiells3095
    @clintonshiells3095 년 전 +10

    This is a very helpful video. I’m an avid cyclist and the steering and stability of bikes is often shrouded in mystery by those who design esp. racing bicycle frames.

    • @SpicyTrifongo
      @SpicyTrifongo 2 개월 전

      So I just watched a video of Peter Sagan cornering.
      He starts the turn by leaning, presumably with the saddle as the contact point. He turns left by leaning left and following with the bars. He never turns the bars to the right.
      I feel like this video is a flawed model that doesn't really cover the full gamut of what entails turning on a bicycle.

  • @lordiblees
    @lordiblees 2 개월 전 +2

    As a teenager, I was extremely inquisitive about the physics behind everyday motion and stuff and no amount of internet research gave me a satisfactory answer about how bikes really work. Thanks so much for finally answering something I quit searching answers for!

  • @DoctorMotorcycle
    @DoctorMotorcycle 2 년 전 +6114

    I figured this out by accident when I did a (small) motorcycle build and wanted to see how tight I could make the steering stem to act as a ghetto "steering stabilizer". I tightened the steering stem to the point where it required a fair amount of force to turn the bars, and I almost fell off the bike when I let the clutch out. It was un-rideable. I had always thought gyroscopic procession was why the bike stayed stable, and immediately realized it was the abilty to constantly re-correct that keeps you from falling over. Would you consider doing a video on the mechanics of Trials bike riders?

  • @lunchbox9991
    @lunchbox9991 2 년 전 +231

    This is well known to people who ride motorcycles. I once had an argument with a work colleague because he simply REFUSED to believe countersteering is a real thing. he got really upset like I was questioning reality or something.

    • @ross302ci
      @ross302ci 2 년 전 +9

      I remember having my mind blown by this when I first rode a motorcycle. Like I knew bicycles had some self-righting properties, but the countersteer there is so fast and light and intuitive that you don't really notice it. On a motorcycle, you contribute so much less to the inertia, it's more like you're an observer of the dynamics than a part of them. The first time you push the handlebars opposite the direction you want to go and the bike just eases over into the turn is such a cool moment.

    • @Novur
      @Novur 2 년 전 +3

      I was just about to comment something similar, I'm glad to have found this comment already here

    • @yourfavoriteeggo2250
      @yourfavoriteeggo2250 2 년 전 +3

      Came here to say the same thing. There are tons of videos on counter steer for motorcycles. This video is actually one of the best IMO because it uses more examples than just motorcycles

    • @HatedJared
      @HatedJared 2 년 전

      I remember trying this when I first started riding motorcycles. On the freeway at 75mph, if you push the left bar up, like you were making a right turn, the bike leans left. Its odd passing cars on the highway like that.

    • @TheToastedBiscuit
      @TheToastedBiscuit 2 년 전 +12

      I have a friend who rides his bicycle to work every day and has been for the past 3 years. We were out on a bike trail and when we took a little rest at the turn around point, I told him about countersteering (I had just started riding a motorcycle and it was fresh in my mind); it ruined the rest of the trip for him. Now that he was consciously aware of what was happening he kept steering all over the place trying to test out this newfound discovery and ended up crashing at one point. Crazy how people can master something and have no idea how it even works.

  • @richardcarter5314
    @richardcarter5314 년 전 +53

    When I turn my bicycle I lean, a little, first and the steering naturally follows on. I think the portion at about 08:00 best explains it in terms of the self steering mechanism.

    • @RenatoLaino
      @RenatoLaino 년 전 +4

      The same when you turn without holding the handles

    • @nigeladams8321
      @nigeladams8321 4 개월 전 +3

      Yeah I've never used counter steering even after watching this video. It feels way more intuitive to lean and then steer

    • @remo-con
      @remo-con 2 개월 전 +1

      yep this whole video is totally wrong, coz when u block the specific turn, what actually happens is u ruin ur balancing, so u just fall off BEFORE u even try to do anything.
      in reality, u can totally turn without countersteering, yes, by leaning first a bit and following with the handlebars as soon as bike starts losing its balance, and this is preferable way to turn in specific situations, like, in winter for example, this way u dont have to lean too much.
      however, in any normal situation its preferable to always go for countersteering, coz its faster and more reliable, and with the speed the ability to not-countersteer loses efficiency extremely fast, like at 50kmph ur turn radius is gonna be somewhat like 20m with countersteering and 50m without, so basically u cant even turn in a city at this speed without countersteering.

    • @SpicyTrifongo
      @SpicyTrifongo 2 개월 전

      I only use counter steering when I'm making a u turn or doing a dramatic turn before stopping.
      any other occasion I start the turn by leaning. This ain't a motorcycle you can overpower it with body weight.
      @@nigeladams8321

  • @olheghtt
    @olheghtt 11 개월 전 +2

    I have watched a lot of videos on counter steering, I'm not going to say that this is the best one, ( i have not seen all of them). But this is by far the best one i have seen....well done.

  • @daanodinot
    @daanodinot 2 년 전 +1490

    Always fascinated by the fact that there was a period of 50 years in human history were you could go from city to city by train, but there was no bicycle yet.

    • @theevermind
      @theevermind 2 년 전 +260

      Also, we put a man on the moon before we put wheels on our luggage.

    • @johnbaldwin8340
      @johnbaldwin8340 2 년 전 +4

      Time travel exist hahah. YOU bring it to the UNKNOWN

    • @suhailadeeb4407
      @suhailadeeb4407 2 년 전 +3

      Actually 14 years earlier

    • @strayhoo-manonyoutube7898
      @strayhoo-manonyoutube7898 2 년 전 +49

      It's like we learn words first and then alphabets

    • @boycottjews
      @boycottjews 2 년 전 +7

      I believe this was European history as much of the rest of the world is still lacking in both technologies.

  • @Ammar34567
    @Ammar34567 2 년 전 +786

    "Since most of us can ride a bicycle"
    Tom Scott: **nervous sweating**

    • @sajid_ahamed
      @sajid_ahamed 2 년 전 +10

      can he not ? is there any video of his in which he says this?

    • @zyaicob
      @zyaicob 2 년 전 +72

      Watch yesterday's Tom Scott Plus video

    • @ragnkja
      @ragnkja 2 년 전 +13

      @@sajid_ahamed
      Yesterday’s video on his second channel, with Mike Boyd.

    • @FogelTheVogel
      @FogelTheVogel 2 년 전 +8

      *Laughs in dutch*

    • @sajid_ahamed
      @sajid_ahamed 2 년 전 +28

      @@ragnkja just watched it, unreasonably funny

  • @MillieBarnes
    @MillieBarnes 10 개월 전 +1

    This was fascinating. I have always loved riding a bike and learned when I was very young so I don't remember hardly ever not riding one. But I've just lost the sight in one eye and had an ankle surgery a few years ago and I'm just now getting back on a bike, and I have to say it getting back on a bike has made me more steady that I've been in years and giving me much more confidence and healing.

    • @altaccount2400
      @altaccount2400 8 개월 전 +1

      It's possible to steer without countersteer just sayin

  • @jakeave
    @jakeave 년 전 +1

    This kind of saved me on my motorcycle because I already ride a bike well and people explaining that on motorcycles you need to counter steer have been confusing me. I think now I understand I've been doing it intuitively, but I can try paying more attention and doing it more conscientiously.

  • @desidudes78
    @desidudes78 2 년 전 +768

    i love how he's just got this dude with him who's like a bicycle/unicycle physics expert who's so passionate about the bike physics he created a rc contraption to demo his point

    • @morry32
      @morry32 2 년 전 +10

      cyclist are weirdos

    • @workingguy6666
      @workingguy6666 2 년 전 +11

      Years ago a motorcycle racing teacher welded the steering on a track motorcycle to prove this same point to deniers.

    • @MyuuriShiina
      @MyuuriShiina 2 년 전 +4

      @@morry32 whats your purpose of saying that

    • @nkaurum3482
      @nkaurum3482 2 년 전 +8

      @@morry32 aren’t you just salty because you can’t ride a bicycle yourself?

    • @LTVoyager
      @LTVoyager 2 년 전 +3

      @@MyuuriShiina Clearly, he’s a cyclist.

  • @Arkios64
    @Arkios64 2 년 전 +768

    Tom Scott: "I have just now finally learned how to ride a bike"
    Meanwhile, Derek, just a few days later: "Here's the reason why most people learning to ride a bike have problems at the beginning"

    • @EcceJack
      @EcceJack 2 년 전 +41

      My thoughts exactly! :D
      And also responding to the "gyroscopic effect" statement along the way

    • @gormster
      @gormster 2 년 전 +14

      Dereked again!

    • @yakoto4876
      @yakoto4876 2 년 전

      exactly what I thought LOL

    • @TechNextLetsGo
      @TechNextLetsGo 2 년 전 +1

      He would have learned how to ride it in 30 minutes.

    • @hoangminhnguyen4800
      @hoangminhnguyen4800 2 년 전 +2

      @@arshad4695 on the tom scott plus channel, he learned to ride a bike from mike boyd whose channel is about him learning new skills

  • @bingbong4745
    @bingbong4745 3 개월 전

    This was a very entertaining and enlightening video. I ride and commute on fixed gear. There is not much counter-steering through traffic, but a lot of leaning and micro-adjustments. Indeed there are many facets to the cycling world that are apparently still to be discovered and explored. Thanks for the brain puzzle!

  • @fenandoh3nr1qu39
    @fenandoh3nr1qu39 년 전 +4

    É realmente incrível como os estudos fazem a diferença, vcs estão estudando algo q a maioria das pessoas pensavam totalmente ao contrário q era devido ao efeito giroscópio mas tem muito mais q isso

  • @LethalLemonLime
    @LethalLemonLime 년 전 +2481

    What's most interesting to me is that humans can do something without even knowing it. I learned to ride a bike as a kid and have never forgotten. I still have a bike now and ride it regularly. If you asked me how to turn, I would've simply said just turn the handle in the direction you want to go. It's incredible that we intuitively counter steer without knowing that we are actually doing that.

    • @alexisaguirre6349
      @alexisaguirre6349 년 전 +106

      4 levels on competence. The highest is unconscious competence and that’s when we do things without knowing how or why we can do it! Super neat.

    • @olehammersland9652
      @olehammersland9652 년 전 +69

      In David Eagleman's book Incognito he recounts an experiment where people were asked to close their eyes and "act out" how they would change lanes in a car. Similarily, most people got it all wrong and would have crashed into the curb. They steered left on an imaginary wheel, and then positioned their hands in the original position again. But everybody missed that you actually have to countersteer to the right again for the car to go straight ahead, and not keep swerving left. Very interesting to me.

    • @Yawyna124
      @Yawyna124 년 전 +40

      Noone has to calculate their trajectory to know how hard they need to jump to hop over a pothole. The ability of fleshythings to grasp physics is truly neat when mathematical and biological knowledge of how it works is esoteric to most.

    • @MsKassandraKotaku
      @MsKassandraKotaku 년 전 +15

      I struggle to ride a bike and have since I was a kid. I still try to ride periodically and can go awhile but find it stressful. I’m always hyperaware that I need to counter-steer and found that out the hard way as a kid when I turned the handlebars without and took a nasty fall. Actually knowing this makes it harder for me to ride. Lol

    • @crisalcantara7671
      @crisalcantara7671 년 전 +5

      It's called mastering a skill and forgetting that you mastered it just like a baby learning to walk it becomes part of you 😎

  • @AndyPanda9
    @AndyPanda9 2 년 전 +956

    Motorcycle enthusiasts hashed this all out 25 years ago in an internet group I belonged to (and I'm sure it was hashed out many times before that - I bet the Wright Brothers knew exactly how it works). The subject came up in the Motorcycle group because getting your motorcycle license had a question about how to turn - and to pass the test their answer was turn left by leaning left. We did similar experiments back then trying to lean a motorcycle that was modified so you couldn't counter-steer and it couldn't be done. Excellent job explaining it in this video - now a whole new generation can be amazed to learn about counter steering.

    • @tommyduris3044
      @tommyduris3044 2 년 전 +13

      Spot on!! 👌🤟 i was waiting for someone to say that

    • @flashpeter625
      @flashpeter625 2 년 전 +17

      I heard that for a motorcycle, the profile of the tire is also important for cornering. Riders are taught that they need to put more throttle to go around a corner at the same speed than if they went straight, and that is because the tire has a smaller diameter on the sides than in the middle, so when cornering, you need to wheel rpm to maintain the same speed. But also, when the tire is tilted, the tire has larger diameter on the outside than the inside of the contact patch, and because the wheel spins as one piece, the larger diameter has to drive a larger distance, so the tire traces a curved path. It basically acts as a differential. I have difficulties joining this with the subject of the video. Am I talking out of my ass? Are they just complementary effects? Can you steer a motorcycle/bicycle on razor thin tires that have no profile?

    • @travismiller5548
      @travismiller5548 2 년 전

      That was a hard question to answer on the test. I got it wrong. The question on my test was a bit different, and the only available answers were weird. The question was: which way do you press the handle bars to turn right. Just putting the whole deal into words was weird enough. Not about leaning like you said (and I would have thought.)
      I never thought about how I press the right handle bar forward, and therefore start falling (and turning) right. The whole thing was a little counterintuitive.

    • @VolodymyrPavlyuk
      @VolodymyrPavlyuk 2 년 전 +8

      @@flashpeter625 they are just different phases of the turn. You use counter steering to lean the motorcycle from a vertical position, and once it's leaned the tire profile kicks in and that keeps the motorcycle along the curve.

    • @Charliened1
      @Charliened1 2 년 전 +3

      There is 2 books on the subject I would highly recommend. Bicycling science, and motorcycle chassis design. There both very interesting and definitely worth a read.

  • @strangerdaysss
    @strangerdaysss 7 개월 전

    i remember when learning how to ride a bike by myself that i needed an initial momentum to enable me to be stable on the bike so i would always practice on a small slope hill. i did it for a few days and got injured a lot and finally learned how to balance and ride on a bike. it definitely took a lot of dedication and courage (sad to say i honestly dont know where this stamina went). i was only an elementary kid at that point and learned how to bike solo.

  • @rustysphotography
    @rustysphotography 3 개월 전 +1

    Driving fast also grips more on corners . Counter turning beforehand seems to put more down force on the side that benefits from more grip . A Scandinavian flick is a move rally drivers use to turn before a corner by counter steering as well . Interesting upload thx

  • @madsellers4933
    @madsellers4933 년 전 +1822

    As the saying goes "It's just like riding a bicycle." Once you learn, you can presumably maintain the ability with little effort or thought. Bicycle riding is such an experiential skill and I think that quote really helps underscore how intuitive and indirect the learning process can be. Great video!

    • @TheUlquiorraCifer
      @TheUlquiorraCifer 년 전 +49

      As a kid I couldn't figure out how to ride a bike for around a week. However I suddenly figured it out after watching another kid falling off of their own bike.

    • @purevessle2641
      @purevessle2641 년 전 +4

      I didn't realise the quote ended until the period after thought, but I prefer it that was.

    • @nataleeisjustchilling2737
      @nataleeisjustchilling2737 년 전 +5

      I thought the saying was just “you never forget how to ride a bike”

    • @kalidos7681
      @kalidos7681 년 전 +1

      @@nataleeisjustchilling2737 cant believe anyone would be rude to a bike

    • @nataleeisjustchilling2737
      @nataleeisjustchilling2737 년 전

      @@kalidos7681 oops lol my bad I fixed it

  • @rosspetersen4434
    @rosspetersen4434 2 년 전 +1684

    Now you and Destin can go on bike rides together

    • @Corkoth55
      @Corkoth55 2 년 전 +34

      I just re-watched his old video yesterday and now this gets uploaded a few minutes ago .. freaky!

    • @Robert-cu9bm
      @Robert-cu9bm 2 년 전 +22

      And make a super impossible bike to ride.

    • @wizard_dynamo
      @wizard_dynamo 2 년 전 +2

      @@Robert-cu9bm That's the plan.

    • @gabor6259
      @gabor6259 2 년 전 +62

      With Tom Scott.

    • @pratyakshyt
      @pratyakshyt 2 년 전 +9

      Yeah I remember this bicycle from destin’s video

  • @mattgalper5397
    @mattgalper5397 5 개월 전 +4

    I just did the MSF basic rider course to learn how to ride a motorcycle and counter steering is a big concept they go over when you're first learning. I feel like they should show this video to all the new riders. I get why they go over the concept of counter steering and make you aware of it in these motorcycle safety courses, but in my experience they don't ever really relate it back to pedal bike riding. And because they introduce counter steering to you as this new, foreign concept that you're just now learning to do for the first time, it makes you overthink it until you realize you were already doing it. At least it did for me. Like I said, I think it's good to make new riders aware of the concept since they're on heavier, more powerful bikes but I think relating it back to turning on a pedal bike and making people aware that counter steering is something they've been doing since they first learned to ride a bike would make the concept feel a lot less intimidating.

  • @kuyab9122
    @kuyab9122 년 전 +31

    We have this decor in the house with a "Life is like a bicycle. In order to keep your balance, you have to keep moving."

    • @stevek8829
      @stevek8829 년 전

      Cute but reality is different. Bicycles can be balanced at zero speed.

    • @kuyab9122
      @kuyab9122 년 전

      @@stevek8829 You just had to be pedantic dude lol

    • @Krecconati
      @Krecconati 년 전

      @@stevek8829 you forgot to mention that you have to be at exact angle to do that (probably irrelevant, but still)

    • @stevek8829
      @stevek8829 년 전

      @@Krecconati you didn't mention what exact angle might that be? They do it at many angles and positions. I didn't forget something that isn't true.

    • @dakota9821
      @dakota9821 년 전

      @@kuyab9122 It's what happens when someone has no friends or life.

  • @michaelsearing8369
    @michaelsearing8369 2 년 전 +1399

    As a mechanical engineer, I have to add that there IS a way to turn right without steering left. Stand up on the pedals and tilt the bike to the right. Since the bike is between the pivot point (of the inverted pendulum) and your center of mass, your overall center of mass will shift to the right, causing you to fall to the right and then catch yourself by steering to the right.
    You can try this at home without a bike by balancing on one foot with your arms at your sides, then pushing your free leg quickly to the side. You'll always fall in that direction (if you do it quickly enough that the foot you're standing on can't correct for the shift in mass).
    This effect isn't very noticeable while biking since you're usually sitting on the seat (removing this degree of freedom). And you're usually moving fast enough that leaning the bike causes a natural steer (in the same direction) which moves your pivot point faster than rocking the bike moves your center of mass.
    This is also a way to track stand without rolling back and forth. You'll find this very difficult to learn, since typically when you fall to the right, you push your arms to the right, but to balance on a stationary bike, you need to push your arms (the bike) to the left. If you haven't seen it, check out Smarter Every Day's video "The Backwards Brain Bicycle" as a complement to this video.
    And this is your only option if you're riding with a group and your front wheel overlaps the rear wheel of the bike in the front of you and comes close to touching it; you can't steer into their rear wheel to turn away, since you'd hit them and wreck yourself. And you can't brake hard, since you'd wreck the person behind you. You have to get out of the saddle and tilt your bike away from theirs, initially countering the bike's natural tendency to steer in that direction.

    • @wellstanner3216
      @wellstanner3216 2 년 전 +108

      Was looking for this comment. I guess as a competitive cyclist I have been able to become aware that the correct technique to corner at higher speeds and even more efficiently is to lean and essentially countersteer a little bit. The countersteer is not something you practice but rather the weighting of the bike is huge. Getting more weight closer to over your wheels and tires allows you to increase grip because of what i assume to be increased contact patch and some physics. Cool to read! Thanks

    • @gigabrother458
      @gigabrother458 2 년 전 +58

      @@wellstanner3216 This video is for and about how tourists ride those blue rental bikes. Try steering this way (as shown in the video) on a downhill at 40mph and have your dentist on speed-dial.

    • @rndviddump304
      @rndviddump304 2 년 전 +42

      ​@@gigabrother458 YES. Exactly this. I often feel as though the plot gets lost in some of these explanations.
      When you are going sufficiently fast enough, a slight shift of your weight by leaning the bike and body are enough to allow for a turn without having to first turn the handlebars in the opposite direction.
      If you look at a video of a person steering without touching the handlebars, you will find at even lower speeds that shifting weight will turn the wheel in the intended direction of travel. Unicycles can also be brought up, but that's slightly outside scope i think.
      Imo the correct explanation in this video should be that bikes are steered primarily by shifting weight not by turning the handles. The handles are there for comfort and precision/stability.

    • @creeperlano7805
      @creeperlano7805 2 년 전 +4

      you wouldn't have to stand up right? i mean i can already do it by sitting and only leaning to a side

    • @nrdejong
      @nrdejong 2 년 전 +5

      @@rndviddump304 I think you're missing the point slightly - it's very difficult/unnatural to "shift weight" on a bicycle without being able to manipulate the steering. Slight adjustments to the steering is how one compensates for shifting weight.
      This is also true on a bike that is ridden with no hands - only in that case the rider has to be sensitive/careful enough about their weight distribution that they can make minor steering adjustments by balance. It's a positive feedback control system, so in order to turn right with no hands, the rider intuitively will start with a very slight lean to the left, and induce a left turn in the steering wheel before leaning right to turn.
      Most people find this a bit difficult (and it very much depends on the inherent stability of the bike), so they instead make minor (read: pre-turn) steering adjustments with their hands, and then as you say, actually lean to make turns. But in either case, control of the steering is critical to maintain balance.

  • @wegvS
    @wegvS 2 년 전 +436

    Countersteering is also something you should internalize as a motorcyclist. In high stress situations like avoiding an accident, it happens quiet often, that riders steer away from the obstacle, just to then drive right into it because of countersteering.

    • @secret-name
      @secret-name 2 년 전 +41

      This. Any motorcyclist worth their salt should have at least a basic understanding of countersteering.

    • @lordgarth1
      @lordgarth1 2 년 전 +21

      The issue with steering wrongly in this type of situation is because people tend to steer where they look.

    • @abrokendowncar
      @abrokendowncar 2 년 전

      I was about to say this

    • @jj4791
      @jj4791 2 년 전 +9

      It's not even possible to ride a motorcycle through a curve without deliberately counter-steering into, and out of, the turn. The higher the speed, the more acute the effect.

    • @wegvS
      @wegvS 2 년 전 +7

      @@jj4791 Most people will countersteer intuitively, but this does not necessarily translate to high stress situations, which is why every motorcyclist should know and understand this effect in my opinion.

  • @khamultheeasterling4459

    As a dutch person this is really funny to see as there are many people that do not even use the steering wheel. You can use only balance for turns.

    • @CramcrumBrewbringer
      @CramcrumBrewbringer 11 개월 전

      Not really. You balance by throwing off your balance, which involves steering.

    • @123698lol
      @123698lol 10 개월 전 +3

      The bicycle still steers when you don't have your hands on the bar. Why was being dutch significant?

    • @khamultheeasterling4459
      @khamultheeasterling4459 10 개월 전 +2

      @@123698lol Because everyone in the Netherlands bikes almost on a daily basis and many do not use the steering wheel. It is like steering with a unicycle it is all in the balance and the speed.

    • @XtreeM_FaiL
      @XtreeM_FaiL 9 개월 전 +2

      @@khamultheeasterling4459 Bicycles usually don't have steering wheels, at least not outside Netherlands.

  • @decwow
    @decwow 4 개월 전

    5:35
    That's part of it. My dad and I tested this years ago with some wood rings we substituted as "wheels".
    Use hard, flat wheels that do not flex under your weight and you can balance upright just fine, after a few practice attempts, when not in motion. You can even do it with the wheels held inline.
    The compressed air filled rubber wheels shift your overall weight and momentum constantly. This is for balance excellent while in motion, but awful for standing stationary.

  • @RadeticDaniel
    @RadeticDaniel 2 년 전 +1078

    "so the steering is not only responsible for turning, but also balance"
    That is such a fundamental in motorsports and also apply to cars by transfering weight between the wheels through the suspensions.
    The more you understand how to change friction forces in the wheels through weight transfer, the less you turn through the steering and the more you do it on the pedals.
    And in old school gokarts you can actually lean forward to increase turning forces without changing the steering angle, which is really cool when you get it right the first time =D

    • @cokecan6169
      @cokecan6169 2 년 전 +36

      Learning about weight transfer in cars is honestly one of the coolest things that's ever happened to me. I had an understanding beforehand that turning the wheel excessively wasn't going to help the turn, but finding out that just by entering with a slight angle and playing with the brake and gas pedals I could get entries with minimal steering and less tire wear was so fun. Also kicked off an interest in sim drifting.

    • @fr8ud64
      @fr8ud64 2 년 전 +2

      wow

    • @CompletelyNormalPhenomenon
      @CompletelyNormalPhenomenon 2 년 전 +13

      This is why people saying that you "just have to lean" into the turn on your scooter or motorbike are just plain wrong and the cause of many injuries and deaths. Countersteering is the ONLY safe and effective way to learn how to ride a bike. Almost all bike crashes are caused by people panicking and not countersteering when required. Telling people to "just lean into the turn" should be considered the same legally as giving instructions and encouraging someone to commit suicide. It is literally the same.

    • @Daniel-dj7fh
      @Daniel-dj7fh 2 년 전 +4

      The go cart thing, that's because you're putting more weight on the front tires causing it to slip less. One would assume that the tires dont slip when the vehicle is turning, but that's not the case.

    • @Daniel-dj7fh
      @Daniel-dj7fh 2 년 전 +5

      @@cokecan6169 I don't want you to get into dangerous hobbies, but you should try motorcycles, that takes driving/riding technique to a finer stage.
      Also I've been sim drifting on grid autosport, whihc is pretty dope

  • @kwhp1507
    @kwhp1507 2 년 전 +608

    As someone who rode heavy motorcycles, you also learn to “counter lean” at low speed.

    • @SkaForFood
      @SkaForFood 2 년 전 +29

      Was just thinking that the experiment was missing that. Lemme see that figure 8 on a 1k bike

    • @deusexaethera
      @deusexaethera 2 년 전 +10

      You mean keeping your body upright while leaning the bike into the turn? Bicyclists do that too at low speeds.

    • @mickaelht598
      @mickaelht598 2 년 전 +5

      but isnt that only at low speed, like at high speed we dont counter lean

    • @DefinitelyNotHaraku
      @DefinitelyNotHaraku 2 년 전 +10

      This video just proves he has never ridden a bike. Pushing to turn instead of pulling is just too hard.

    • @coreycarpenter2489
      @coreycarpenter2489 2 년 전 +1

      I was thinking of saying something like this but you beat me to it.

  • @SuperSpruce
    @SuperSpruce 8 개월 전

    As I was taking the Basic Riders Course to learn how to ride a motorcycle, it at first seemed like a countersteer to the other direction to initiate a swerve just felt wrong. But when I executed it properly, the swerve was smooth and effective.

  • @ajanderson4754
    @ajanderson4754 6 개월 전

    Thanks. I'm trying to understand angular momentum and gyroscopic precession. This answered my google search '...but how does gyroscopic precession affect a bicycle?' - Amazing.

  • @ScrapPalletMan
    @ScrapPalletMan 2 년 전 +2514

    My subconscious knows, but my conscious mind doesn't - wild. This is true in so many areas of our lives.

    • @hmr313_
      @hmr313_ 2 년 전 +4

      wow

    • @garywhitt98
      @garywhitt98 2 년 전 +18

      This is some real wisdom. Thanks.

    • @beezmanit2683
      @beezmanit2683 2 년 전 +31

      yea brain is just too mysterious

    • @caz8135
      @caz8135 2 년 전 +71

      @@beezmanit2683 says the brain

    • @Fullchaos40
      @Fullchaos40 2 년 전 +7

      When you're an expert at falling forward without injury you can become an expert at falling perfectly on anything.

  • @I_Mark_Mills
    @I_Mark_Mills 2 년 전 +299

    As a motorcyclist, I very quickly learned about counter steering. Somehow it's just more important to know this information when you're travelling at 50mph haha.

    • @stevepseudonym445
      @stevepseudonym445 2 년 전 +6

      As a bicyclist I've never been consciously aware of turning the handlebars to initiate a normal turn, but I've never ridden a bike that weighed more than perhaps 30 pounds. If my bike weighed several hundred pounds and the rotating wheels weighed 20 pounds or more I presume that I'd have to steer the bike out from under me to shift the weight.

    • @AVI8ER
      @AVI8ER 2 년 전 +9

      It's one of the first things you learn when learning to ride a motorcycle. Push the handlebar in the direction you intend to turn. The property is FAR more apparent when riding a motorcycle. Going faster speeds you also need to counter steer through the entire turn instead of just the beginning of the turn.

    • @adam346
      @adam346 2 년 전

      also why having a strong dampener is a good thing on bumpy roads.

    • @tomcooney183
      @tomcooney183 2 년 전

      Agreed, motorcycles are much heavier too, need a lot more rider input to execute aggressive manoeuvres

    • @justinross165
      @justinross165 2 년 전 +1

      Yeah you REALLY become aware when your bike is suddenly 600lbs instead of 40lbs lmao

  • @cylver4630
    @cylver4630 년 전 +20

    This would have saved years(learning), if I knew this in my childhood

  • @wickitklown90
    @wickitklown90 3 개월 전

    5:48
    I learned this years ago, via Ripley's, I think. A guy went to the Salt Flats to switch bikes at a high speed. He rode one and had someone ride beside him. The bike he switched off and on to, stayed up riderless for about 100 yards of the stunt.

  • @tripl3stan
    @tripl3stan 2 년 전 +540

    As an avid mountain biker, this blew my mind. I’ve never realized how genius the idea of bikes were and when I’m mountain biking I’m flying through tight gaps at high speeds, not realizing how many small adjustments I am making to keep the bike going where I want it. Definitely going to test this theory when I get home from college this weekend to see just how much I don’t know about something I love.

    • @Rick_Cavallaro
      @Rick_Cavallaro 2 년 전 +15

      >> going to test this theory when I get home
      It's actually kind of difficult to test. At higher speeds, the amount of counter-steering can be quite small - and subconscious. But the more aggressive your turn, the more aggressive the counter-steer will have to be to initiate it. Some folks have mentioned in the comments that they can always see the track of the front wheel counter-steering after going through a puddle. Perhaps you'll be able to see it in the dirt as well.

    • @XtreeM_FaiL
      @XtreeM_FaiL 2 년 전 +5

      @@Rick_Cavallaro It is very simple test.
      The problem is that even when you fully concetrate, the countersteering effect is still very subtle and hard to notice.
      It will be easier to notice on a heavier motorbike.

    • @alexchene4064
      @alexchene4064 2 년 전 +4

      As a fellow mountain biker, my friend and I do not counter steer at all when riding, at least not enough for his iphone slow mo to pick up. Maybe its unique to just me an him, or it could be mountain biker thing due to having less room on turns to counter steer

    • @Rick_Cavallaro
      @Rick_Cavallaro 2 년 전 +6

      @@alexchene4064 It's easy to believe that you don't see it on video - particularly when riding faster, and definitely harder to see when you're linking left and right turns. It's easiest to see if filmed from directly in front and initiating a turn from riding straight. But I can very nearly assure you that you're both doing it. Some people have also mentioned that it's easiest to see by looking at the difference between the front and rear wheel tracks on the ground.

    • @XtreeM_FaiL
      @XtreeM_FaiL 2 년 전 +4

      @@alexchene4064 You do it all the time, every time.
      Even when you ride straight (straight as possible) you constantly countersteer.

  • @gusmartin6053
    @gusmartin6053 2 년 전 +659

    This explains why I feel like I get stuck riding close to the edge of a sidewalk. I need to steer towards it first before I can steer away from it. I always thought this was some psychological barrier but it's just physics.

    • @qgqsrg1
      @qgqsrg1 2 년 전 +45

      just lean the entire bike instead of just turning the handle/front wheel, can be a pain at slow speeds but still possible, just don't sit and counter balance with your body. You don't need to turn the handle/front wheel to turn (or barely for sharper turns but after the bike lean so still no need to counter steer).

    • @igorswies5913
      @igorswies5913 2 년 전 +80

      Technically it is a psychological barrier - no physics force is blocking you from falling onto the road

    • @paulmichaelfreedman8334
      @paulmichaelfreedman8334 2 년 전 +6

      Yes, very treacherous situation, I know exactly what you mean. Trying to squeeze past cars on the curb side will get you into that :P When it happens to me I try to keep a centimeter or so of space between the tyre wall and the curb. It's enough to countersteer. Also if it does happen that space runs out a quick hard jerk on the handle bars will warp the tyre enough to shift the centre of gravity into the favorable direction. So never blow up your front tyre too hard because that makes it harder for such an emergency maneuver. Mind that my bike has a fairly thin front tyre as it's an all-road type bike (Honda XL600V Transalp 1994) and I mostly ride on studded tyres

    • @weevilinabox
      @weevilinabox 2 년 전 +5

      If you reach the point where your front tyre is brushing the kerb, you can neither steer away nor lean away. If you're going too fast to stop, only a bunnyhop over the kerb will save you.

    • @Liteg0
      @Liteg0 2 년 전 +15

      When learning to ride a motorcycle you learn about counter steering, but you also learn about target fixation. Target fixation means that you go where you look, so if you see a hazard in the road, and you focus on it to try and avoid it, you will instead run into it. Counter intuitively you have to try and focus on where the hazard is not, and you'll be fine. So in your case it's probably both a psychological and a physics problem.

  • @Rukain
    @Rukain 10 개월 전

    Wow.. loved to learn about this. Never knew bicycles had these kinds of things going on. Thanks a lot for the video.

  • @explorewithgeoff
    @explorewithgeoff 7 개월 전 +1

    I'm a new cyclist and have found real problems with the camber (sideways slope) where I've ridden. I fell of due to that and now am injured so can't ride for a while. From what others have told me, plus this video that has made it even clearer, I wasn't leaning at all but was moving the wheel to steer. I used to ride as a teenager with no problems at all, yet somehow in my 50's it isn't coming to me naturally. It's actually quite odd that I seem to have "forgotten" how to steer a bike! I should be doing it without thinking, but it's not happening. I can't wait to get back on and try again.

  • @LazerLord10
    @LazerLord10 2 년 전 +1214

    The "caster angle" of a bike is also why 4-wheel cars are stable in the forward direction (same with 3-wheeled robins). But that's also why going reverse at high speeds is very unstable.

    • @whoreslayer
      @whoreslayer 2 년 전 +1

      Yes

    • @ninx_music
      @ninx_music 2 년 전

      yep

    • @strangeclouds58
      @strangeclouds58 2 년 전 +1

      3 wheel robin?

    • @bigiron4018
      @bigiron4018 2 년 전 +24

      Also, to add when driving in reverse you have toe out in the front wheels, which makes the wheels want to turn, not go straight.
      But doesn’t apply to 2 wheeled stuff.

    • @Encicia
      @Encicia 2 년 전 +9

      @@strangeclouds58 The Reliant Robin is a car that only has 3 wheels.

  • @BlakeEM
    @BlakeEM 2 년 전 +386

    When you ride motorcycles this is the first thing you learn.
    I'm pretty sure it's the rake angle (keeping the front wheel straight and countering any lean) and momentum is why the bike is stable. The gyroscopic effect does help, but it's not required.

    • @dwareb
      @dwareb 2 년 전 +5

      I was going to say this too. But yeah, first thing you're taught.

    • @MichaelLazorchak
      @MichaelLazorchak 2 년 전 +11

      Push left to turn left.

    • @girla9480
      @girla9480 2 년 전 +21

      Motorcycles are a lot heavier, however. To turn a motorcycle, you have to shift the weight of the vehicle, which requires counter steering. To turn a bicycle, you have to shift the weight of your body, which does not require counter steering. It's just that most people don't really train themselves to do that, as keeping your body static in relation to the bicycle and using counter steering is the easiest riding style. You can trivially show that counter steering is not required by letting go of the handlebars and steering by shifting your weight. You can also prove that counter steering is not required by letting a bike coast without a rider and observing that it turns in the direction it leans without any counter steering being performed, e.g. at 7:24 in this very video.

    • @Bill_Brasky
      @Bill_Brasky 2 년 전

      Came here to say something similar.

    • @isaackvasager9957
      @isaackvasager9957 2 년 전 +8

      @@MichaelLazorchak "push left to turn left" I ride motorcycle and I remember when I first started I was SSOOOO amazed and confused by this.

  • @jdb9129
    @jdb9129 4 개월 전

    Great video! I guess I never realized it's probably not common knowledge. Counter-steering was something you had to learn right away on a motorcycle, but then again, most people don't ride a motorcycle lol.

  • @ivarrtullitt1235
    @ivarrtullitt1235 8 개월 전 +4

    Be surprised how much knowledge of counter-steering is known amongst the motorbike community. One of the first things we learn

  • @texarama
    @texarama 2 년 전 +359

    This was the first thing they taught us in our motorcycle training class back in 1981. Important for accident avoidance.

    • @N2eJyriOo
      @N2eJyriOo 년 전 +11

      And they still do today.

    • @myrdhina
      @myrdhina 년 전 +5

      An amazing video for that is: "consequences of not understanding counter-steering on a motorcycle".
      At first it's tough to watch, but they explain the rider is okay. It's very educational.

  • @betatree
    @betatree 2 년 전 +784

    The counter steering is one of the first things you learn when getting your motorcycle license!

    • @farLander1
      @farLander1 2 년 전 +26

      yep, and when you're at speed steering is always with countersteer, which is a little scary when you think about it lol

    • @Robert-cu9bm
      @Robert-cu9bm 2 년 전 +9

      @@disturbeddonut2151
      Unless you going slow.

    • @TheDaltonNetwork
      @TheDaltonNetwork 2 년 전 +32

      Yes, and it's much more obvious on a motorcycle. They very explicitly teach you to literally push the handlebar of the side that you want to turn into, to induce the lean. Want to turn left? Push left. Want to turn faster in a tight corner, even though you're already leaning and turning? Push left more!

    • @paulmichaelfreedman8334
      @paulmichaelfreedman8334 2 년 전

      @@farLander1 Yes but it is tiny compared to low speed counter-steering.

    • @merlijniboy
      @merlijniboy 2 년 전 +13

      And they do this because it it harder to move the bike from side to side quickly with your bodyweight, at speed, counter steering is way faster! In some countries, dodging a couple of cones at 50 km/h using counter steering is part of your exam.

  • @GremlinSciences
    @GremlinSciences 년 전 +6

    You don't _need_ the counter-steer, you can also just move your center of mass to lean into the turn. It actually becomes a required skill if you ride at high speeds, and will let you turn even if your handlebars are locked up.
    I used to do snack runs on my bike, but never got around to getting a basket or cargo rack. I'd just hang the bags off my handle bars as best I could, which often meant also lashing them to the frame so they wouldn't rub on the wheel during turns, and almost invariably rendered the handlebars inoperable. You learn to push the entire bike one way by throwing your mass the other before pulling it back and fixing your balance.

    • @XtreeM_FaiL
      @XtreeM_FaiL 년 전 +2

      Sir Newton want to talk with you.

    • @jridenour31
      @jridenour31 3 개월 전

      Omg, no. The bike WILL NOT TURN without changing the direction of the wheel.

    • @GremlinSciences
      @GremlinSciences 3 개월 전

      You've never thought of how turns work with trains, have you?@@jridenour31 Same principle, but applied in reverse. Bike wheels are round and create a small flat patch where they contact the ground; when the bike is completely vertical the bike goes straight because that entire area is moving the same speed, when the bike leans it causes the further edge of that patch to be moving faster and thus induces a gradual turn.

  • @genuinelyspoken6611
    @genuinelyspoken6611 7 개월 전

    i actually learned how a bike handles when i was around 4 i used to have training wheels but they were bent to the point where they don't ever contact the ground anymore, one time when i was riding it i noticed it was balancing so i asked to remove the training wheels and i managed to balance it i just knew that if it's rolling it will balance and turning just came naturally because when i turned the handle bar i noticed it wasnts to lean towards the direction it turns so after a few tries i got the hang of pushing it towards the direction i want it to go it was such a fascinating experience

  • @miserys.company
    @miserys.company 2 년 전 +803

    As a kid this was “ghost riding.” Always a concept that caused dread about the danger of your bike hitting something but the curiosity was overwhelming. Kudos to this.

    • @mee2556
      @mee2556 2 년 전 +1

      👍

    • @Flameancer
      @Flameancer 2 년 전 +2

      I remember this, essentially you use your own body as the handlebars to preform the steering.

    • @Force1Com
      @Force1Com 2 년 전

      Finally, a video that's relevant to my life

    • @AdderallXR831
      @AdderallXR831 2 년 전 +1

      @@Flameancer its all in the hips to steer

    • @alexchene4064
      @alexchene4064 2 년 전 +2

      @@AdderallXR831 for me it was in the upper torso, I would shift it to the left to go left, and right to go right. It is much more noticeable when riding without using hands

  • @neurostreams
    @neurostreams 2 년 전 +381

    "...how bicycles work is still an active area of research." That was a gem.

    • @jagatiello6900
      @jagatiello6900 2 년 전 +11

      I used to think of the transistor as the greatest invention of all time but I changed my mind a few years ago for the bicycle. It's efficient, it's cheap, it's eco-friendly...
      ...and it can surely teach us some physics as well.

    • @MJ-uk6lu
      @MJ-uk6lu 2 년 전

      @@jagatiello6900 I think that greatest invention so far is likely money. Something that we all use and are familiar with, but so many things are still unknown about how precisely it behaves and why. But after that to me comes psychology. It's fascinating how we try to understand how we think/behave, while using just one or few brains. Sounds like paradox, trying to outsmart the literal brains to explain why it does what it does. But yeah, bicycles are cool too, but more precisely bicycle engineering and physics.

    • @extragoogleaccount6061
      @extragoogleaccount6061 2 년 전 +2

      @@MJ-uk6luNot sure if psychology counts as an "invention"....

    • @prusak26
      @prusak26 2 년 전

      Well, my 6 year old mountain bike, the one I paid £2000 for, is considered by many “unridable” because its head angle is steeper by 1 degree, and the reach measurement is 20mm shorter than the latest model. What was once called “responsive steering” is now called “twitchy AF”. Even though we now know what sort of works, and what kinda doesn’t, bikes are still evolving and they will for years to come.

    • @MJ-uk6lu
      @MJ-uk6lu 2 년 전

      @@extragoogleaccount6061 I guess it doesn't, but as science subject it's interesting, but also absurd (due to my mentioned paradox). It seems to have no end and it's impossible to accurately find answers with it.

  • @aitnez
    @aitnez 3 개월 전

    I just got home from a bike ride! Amazing video and information!

  • @MSimmonsAZ
    @MSimmonsAZ 4 개월 전 +1

    30 years ago I did a bike tour/race. I went to the info session. They said when you see a stone or something small in the road ahead of your front tire just sort of punch the handle bar on one side you and you will avoid the object on the other side. so if I punch right I will pass the object on the left. Depending on speed it is perfect for moving the bike over 2 inches either way.

  • @esc8engn
    @esc8engn 2 년 전 +363

    as a veteran of the retail bicycle industry in new england for about 15 years, and an avid cyclist for longer than that, i find this particular mystery *very* intriguing. well done.

    • @johnbaldwin8340
      @johnbaldwin8340 2 년 전 +2

      Then you start challenging yourself to actually ride the UNRIDEABLE bicycle and guess what.
      Our body does move with everything

    • @everlasting1237
      @everlasting1237 2 년 전 +1

      as an internet and youtube engineer, i commend this comment

  • @brotendo
    @brotendo 2 년 전 +649

    Countersteering is one of the first things you learn when attending motorcycling classes. They teach you to push the handle bar on the same side that you want to turn (i.e. push the left handlebar to go left).

    • @einarberg7870
      @einarberg7870 년 전 +9

      Whats the point of mc schools teaching counterstering when everybody already know how to do it whithout knowing what it is?

    • @stephenhiggins8744
      @stephenhiggins8744 년 전

      or turn left to make a right.

    • @Panda_Gibs
      @Panda_Gibs 년 전 +62

      @@einarberg7870 get on a motorcycle some time. Counter steering is definitely not the intuitive way you will try to control it. The extra weight of the bike will make you want to shift your weight to muscle the bike the direction you want to go. This bad habit is very ineffective though. Thus teaching correct steering technique.

    • @OfficialAzor
      @OfficialAzor 년 전 +15

      @@einarberg7870 u learn this because the speed of a motorcycle and weight is allot higher, I'm taking my license now and yeah you will do it automatically, but when u know this actively u can go faster and have more controll in a corner.

    • @brotendo
      @brotendo 년 전 +8

      @@einarberg7870 I learned it at a racing school. The point is they want people to do it more purposefully and aggressively when they need to take different lines to pass each other in turns. They also don't want you to just gently and instinctively fall into the turn, you want to be assertive and enter the turn with purpose. Have you ever been on a racetrack?

  • @nfineon
    @nfineon 14 일 전 +1

    I was hoping to see more physics explainations behind the demonstration, so here's something interesting:
    Turning left/right also depends on your speed as well . At high speeds, we need to countersteer (turn left to lean right which turns the bike right) but at low speed turns below +/-25 kph it reverses so we need to turn the handle bar right and lean left to turn right to make a U-turn or tight corner.
    You learn this intuitively with practice, but there is a transition velocity where you must make a call on how to turn the bike depending on the corner angle and your speed.
    The type of input can also change mid corner, meaning a corner taken just below or above the steering transition velocity may require a different line and turning technique especially to maximize performance (watch the insane 60° lean angles in Moto GP and see how they push the limits of physics)
    How about a follow-up video on a motorcycle to demonstrate this behavior.
    The mass of your 2 wheeled ride of choice also affects this transition velocity that will require an inversion to your inputs (harder to demonstrate on a bicycle, easier on a motorcycle).
    You should do a Collab with the guys at FortNine, they make amazing videos on this and you could describe the crazy physics involved.
    Link to FortNine:
    (KRplus)/U1mSavQ_DXs

  • @MrBwian
    @MrBwian 6 개월 전

    Counter-steering, or positive input, when riding my motorbike, I was taught to push the bars forward for the direction required, push left forward, turn left and vice-versa
    It's very sensitive and aids cornering with less effort

  • @fristlsat4663
    @fristlsat4663 2 년 전 +1654

    It would be thoroughly fascinating to see this bike ridden by a good bicycle trials rider. To be good at trials you have to be able to separate lean and steer, you sometimes need to avoid countersteer to get your wheels in the right place on an obstacle, or even counter lean, as in lean the bike to the left while turning right. Of course a lot of trials riding doesn't involve the wheels turning, so "riding" may be to loosely defined in this case.

    • @geroutathat
      @geroutathat 2 년 전 +34

      Yeah i would like to see someone who can throw the bike around under them. When I want to turn left I dont lean left, I usually just lift my knee and lean the frame over to somewhere between 45 and 90 degree. I am not saying I could still cycle the bike, however it would be interesting to see whats happening and would happen if the bike was changed slightly. Also Id like to see what happens when people get up and run on the bike, with the frame violently moving from left to right as they go straight on.

    • @sebastianramadan8393
      @sebastianramadan8393 2 년 전 +6

      Separating lean from steer is something most kids learn early on, but that'd help, yes... The stuntmen may be able to pick the right wheel off the ground, and scoot around on the rear wheel exclusively, changing directions as required and so forth (like in "the nosebleed section").

    • @rokmerse9551
      @rokmerse9551 2 년 전 +5

      you can lean and ride straight but you can't steer without leaning, i don't believe its necessary to counter steer first to make a turn, since you can drive a bike without hands, where only leaning is applied, so if those people are as good as you say they are (idk since i've never heard of them), i don't think they would have a problem riding that bike. I have also payed much more attention since i saw this video, and since i've been interested in the similiar phenomenom i noticed a few years ago, and u would have a hard time convincing me that i cant do it without a counter steer

    • @sirhetmanpirate
      @sirhetmanpirate 2 년 전 +19

      @@rokmerse9551 If not using your hands, only leaning, the bike will counter steer by itself. That method won't work for this locked-handlebar bike. They didn't show it in the vid, but if you locked the handlebar and pushed the bike down a hill, it will crash...

    • @tizianseifert5374
      @tizianseifert5374 2 년 전 +2

      First mistake, do this standing. Then it is way more simple.

  • @rem362
    @rem362 2 년 전 +1256

    This is also a thing you can see on motorcycles. Let's say you let off the bars and just lean to the left. The bar also turns to the right for a moment until the bike dips to the left side. That's also how countersteering works at higher speeds. I feel like this is a technique that most bikers are aware off because it's an essential for driving safely

    • @pleasedontwatchthese9593
      @pleasedontwatchthese9593 2 년 전 +60

      True, its basically a required skill if your going 30mph or faster.

    • @randomcreativename
      @randomcreativename 2 년 전 +19

      Push right go right

    • @jonboy602
      @jonboy602 2 년 전 +30

      @@randomcreativename And yet not taught in UK bike tests. Almost killed me on my 2nd or 3rd solo ride. Weird how varied different countries teaching priorities are, and the UK test is otherwise very rigorous.

    • @alone9695
      @alone9695 2 년 전 +9

      @@jonboy602 that sucks

    • @joey_diaz_clips
      @joey_diaz_clips 2 년 전 +4

      I'm glad I saw this comment as I actually am getting my first bike around Christmas with the help of my dad so I'm trying to learn what I can before I start my lessons

  • @Jowen0wen
    @Jowen0wen 8 개월 전

    I think i assumed you can balance a moving bike because the bike is moving forward so any force to the left and right would need to be greater than it would when stationary in order for the bike to fall over.
    But this makes sooo much more sense now I've heard it 😂 even when stationary anything I'd automatically do to try and balance is all in the steering of the handlebars

  • @that1person643
    @that1person643 2 년 전 +542

    I had a good feeling this was about counter steering before you mentioned the remote control. Its a big part of riding a motorcycle as well and when you explain it people don't understand yet they do it so intuitively.

    • @renken240
      @renken240 2 년 전 +3

      @Glen Spivey I do the same to my friends that ride.Telling them you push left to go right, they think I'm crazy. Keith Code explained this in his book "twist of the wrist" .

    • @reymisteryo9163
      @reymisteryo9163 2 년 전 +5

      Most newbie motorcycle riders overshoot because of that.
      When they ride fast and encounter a curve, they often steer where the road is going, then accident happens.

    • @t0k4m4k7
      @t0k4m4k7 2 년 전 +4

      @@renken240 You mean push right (handlebar) to go right, right?

    • @therewat
      @therewat 2 년 전

      I thought the same thing too. Had a feeling its about counter steering.

    • @therewat
      @therewat 2 년 전 +1

      @Glen Spivey yes. I too do that with my pillion showing them counter steering and it blows their mind. Lol

  • @zone07
    @zone07 2 년 전 +302

    This was one of my biggest arguments as a motorcycle rider. Counter steering awareness is vital to motorcyclists for avoiding accidents at slows speeds as in traffic.

    • @AlenHR
      @AlenHR 2 년 전 +6

      Yea, it is amazing when it clicks for you. You can steer with one hand while moving your body around, and still maintain perfect stability and directional control.

    • @TheJohnreeves
      @TheJohnreeves 2 년 전 +6

      How long ago did you learn? That's what they teach new riders where I am (Oregon, US). They emphasize it a lot.

    • @kmech3rd
      @kmech3rd 2 년 전 +3

      I changed over to a trike years ago. I still have to fight my instincts when I ride.

    • @armadilllo
      @armadilllo 2 년 전 +2

      thing is everyone does it and doesn't need to be taught.

    • @sacr3
      @sacr3 2 년 전 +7

      I ride a Vulcan 2000 myself and I never knew why motorcycle riders felt like they just HAD to explain counter steering.
      If you've ridden a bicycle, you already know what counter steering is. The moment you hop on a motorcycle you already know about counter steering.
      Yet for some reason bikers feel like they gotta tell people about it.
      Tell people to keep their legs tucked in at low speeds as opposed to sticking them out, better advice, people instinctively stick their legs out to balance but it actually decreases your stability.

  • @ian9toes
    @ian9toes 11 개월 전

    Cotton chipping once on a motorcycle set up with an auto clutch and outrigger so that the bike could easily be mounted and dismounted to attack weeds, was a fascinating experience. With all three wheels on the ground there was no counter steer to initiate a turn. However on the open road you could get the outrigger off the ground and then you had a normal steering motor bike. So the one vehicle had two distinct turning characteristics which didn’t take much to master, at least not for me being a seasoned dirtbike rider I assume.

  • @riksstaden4927
    @riksstaden4927 2 개월 전

    Where I live there is a bike road down hill with a sharp turn, and if you don't break you need to counter steer across the entire bike road. And you need to hold out your arm really early on so you can have your hands on the stering bar during the turn. Didn't realize ever turn had counter stering though.

  • @DoubleYouPee1
    @DoubleYouPee1 2 년 전 +483

    This counter steer effect is really well demonstrated when riding a motorcycle at high speed. Especially in a chicane you are literally pulling the opposite side of the handlebar with all your power to flip the bike. Pretty cool feeling.

    • @SwainixFPV
      @SwainixFPV 2 년 전 +19

      even at low speed really, starting from 30 kph (20 mph ? idk) you're really only using counter steering, but at 15 kph (10mph) you start feeling it already

    • @vladstepanchuk3086
      @vladstepanchuk3086 2 년 전 +10

      Profile pic checks out.

    • @sly9889
      @sly9889 2 년 전 +5

      @@SwainixFPV you're using it even when doing extremely slow speeds to initiate a lean. Motojitsu has a video on it

    • @SwainixFPV
      @SwainixFPV 2 년 전 +1

      @@sly9889 depends on the maneuver for me, on a tight U turn yes, but it's more like having more space to work with than counter steering. On a slow slalom like the one you have to do to get your permit in The Netherlands you're not counter steering

    • @DanHalford75
      @DanHalford75 2 년 전 +4

      @@SwainixFPV You will be counter-steering even at very low speed, but the effort required will be so little, it’s virtually imperceptible.

  • @ZigoMix
    @ZigoMix 21 일 전

    That's so true, though I think you can learn to tilt your head in the direction you want to go without turning the other way first, but your reaction are slowed if you insist in using this and it requires much more vigilance !

  • @SeeMyEvil
    @SeeMyEvil 14 일 전

    Makes me think back and how I used to ride my bike without using the steering wheel.
    And just walked with whatever momentum the bike was giving me adjusting my speed accordingly and leaning.
    If needed.
    I don't know if that would be in any way useful for what you guys are doing.

  • @OmDahake
    @OmDahake 2 년 전 +1279

    Just knowing that scientist are still researching how cycles work just surprises me that how much physics just a simple object carries

    • @Raleford
      @Raleford 년 전 +67

      I think it also demonstrates just how complex physics is as a field. We don't even know everything about the things we know.

    • @liamg9410
      @liamg9410 년 전 +12

      @Check my about page link get a life dude nobody is doing that

    • @manuelbuitenhuis7337
      @manuelbuitenhuis7337 년 전 +1

      I also think a bicycle is far from a simple object

  • @Tomoyo_Sayomura
    @Tomoyo_Sayomura 2 년 전 +123

    I’ve read it somewhere that bicycles are one of or maybe the most well designed inventions humans have ever came up with. The design is so perfect and works so well with human body that few adjustments were made since their invention. Truly a masterpiece.

    • @mikehammer3515
      @mikehammer3515 2 년 전 +14

      I agree.. they truly are amazing... but I will point out that mountain bikes have had great improvements in capability in the past 10 years. They refer to it as "the geometry" of the bike.. proportions and angles have greatly changed in the past decade, making a tremendously more capable mountain biking machine. I had no idea until 2 years ago when I finally got a nice "trail bike".. It took me a month of research to understand what I was getting into.
      I've always ridden for my entire life and I'm 39. I was blind to what MTB really was.. I watch a lot of KRplus..lol😄.. My skills have come a long way since then.
      In fact, MTB races have actually gotten more gnarly and technical in these past years because of the advancements and further understanding of bike geometry and suspension.. Suspension is a whole other subject.. it's also advanced greatly in these past years..
      I highly recommend MTB.. Now is the best time to get into it.. bikes are better than ever.. I wish I had discovered it much younger.
      I guess in it's essence, I can agree with you though.. we've been using derailleurs since way back.. The basic design holds true.. a bike is a bike. If ya haven't caught on, I love biking!😆

    • @ruslankazimov622
      @ruslankazimov622 2 년 전 +11

      Just like bow..and archery in general. The physics behind them are really complex. Different bow shapes, materials, dimensions and also arrow length and arrowheads for different tasks. If we were to calculate precise trajectory of arrow ... we would have had so many variables to include. When we put them down to mathematical formulas and geometric shapes, they are like really complex stuff. But you don't have to understand it when you have visiual feedback on your inputs instantly.

    • @omniyambot9876
      @omniyambot9876 2 년 전 +2

      Ughh I'll stop buying Dura-Ace now.

    • @Xxmeca421xX
      @Xxmeca421xX 2 년 전 +2

      I'd disagree. A car that can run by exploding gas in a cylinder is by far more ingenious.

    • @kokbasE
      @kokbasE 2 년 전

      False, talk to anyone who owns a recumbent.

  • @thecomputerguy6335
    @thecomputerguy6335 개월 전

    Just tried this out myself and videoed it to see if I do the same. Turns out from going fraim by fraim that when I want to turn i just move my body in the direction i want to turn with using the handlebars. This does make the bike stand slightly more upright but atchieves the same effect for shifting your center of gravity for the bike to be able to do the turn. Allowing me to manoeuvre and get around corners that don't actually have a lot of room in them

  • @kjellg6532
    @kjellg6532 12 일 전

    Thank you for this video. I agued the same counter stearing to my fellow enineers 40 yrs ago, they would not listen. Here I got a commerade in arms.

  • @PaulSinnema
    @PaulSinnema 2 년 전 +246

    I’m from The Netherlands. Needles to say I’ve been riding a Bike all my life. This is an eye-opener. I knew that my brain automatically understands the balance of a bike but I never knew
    the science behind this. Thank you Derik.

    • @alveolate
      @alveolate 2 년 전 +9

      i wonder if this means there's a more instructive way to teach someone how to ride bikes now...

    • @ronaksingh3220
      @ronaksingh3220 2 년 전

      our mind is more complex than we think bro

    • @ronaksingh3220
      @ronaksingh3220 2 년 전

      our does things we don't even know

    • @NardKoning
      @NardKoning 2 년 전 +7

      I found it funny that obviously the bike researchers were Dutch from TU Delft haha

    • @mikehammer3515
      @mikehammer3515 2 년 전 +3

      I'm in Pennsylvania.. I been riding my whole life.. that kinda blows my mind that before a turn, you turn the other way first.. I ride A LOT! To realize this after all these years🤯🤯😲

  • @lestick4368
    @lestick4368 2 년 전 +376

    As a competitive cyclist I'm glad you made this, because people always assume I know how everything works, so I can now give a half decent explanation

    • @Daniel-dj7fh
      @Daniel-dj7fh 2 년 전 +2

      Or point out to the video and say, "I learned it by doing not understanding"

    • @lestick4368
      @lestick4368 2 년 전 +7

      Nono, I gotta sound smart, and then when they inevitably ask again I'll point them to the video

    • @729Crew
      @729Crew 2 년 전 +2

      compete with my cylcing skills i bmx an i bet i could burn yo as up out the dig 25 tooth single gear is all i need to suply the gap sauce

    • @dimitridan8112
      @dimitridan8112 2 년 전 +7

      @@729Crew who cares lol

    • @729Crew
      @729Crew 2 년 전 +2

      @@dimitridan8112 im cold on tha bike dawg

  • @mathixx
    @mathixx 6 개월 전

    I only learned how bike really forks after starting to ride on a motorcycle. You have to learn to use counter-steering consciously in order to lean your bike into sharp turns. It's quite amazing when you use this knowledge later on regular bicycle ;)

  • @FineBakedPastry
    @FineBakedPastry 년 전 +1

    Basic motorcycle course instructions make this pretty clear: to turn left, you push on the left side of the handlebar. Opposite of how you would think a motorcycle turns.

  • @JRowan180
    @JRowan180 2 년 전 +464

    Understanding these concepts at a basic level is vital to becoming a proficient motorcycle rider, and any rider that took classes understands counter-steering. This video however digs deeper and makes it extremely easy to understand! I would love to see more details about this specific to motorcycles which involve much more mass and significantly higher speeds. Counter-steering is significantly more noticeable there than on a bicycle.

    • @anonamemous6865
      @anonamemous6865 2 년 전 +2

      Bro I learned motorcycle just in one day... My father just say that I should make it run and ride it and I find it stupid LoL... But luckily I'm not injured and still alive

    • @anonamemous6865
      @anonamemous6865 2 년 전 +1

      Btw we sold it tho

    • @clementm5417
      @clementm5417 2 년 전 +2

      With heavier wheels, but mostly because of higher speeds, coriollis effct comes into action. It means turnig the wheel to the left will produce a torque to roll you to the right.
      Hopefully this goes in the same way so it adds to the effect described in the video and you don't have to act very differently depending on speed. I'm unsure how big each effect is though, but pretty sure the video is correct in not mentionning coriollis on a low speed bicycle while a speed motorcycle is mostly coriollis.

    • @clementm5417
      @clementm5417 2 년 전 +11

      @@anonamemous6865 You didn't learn motorcycle in one day. you managed to ride one. There's a difference and it'll show the first time you find yourself in a bad situation.

    • @bobbym6130
      @bobbym6130 2 년 전

      I still remember how they taught the counter steer for normal turns and for a quick wobble avoidance you don't counter turn, but you have to wobble quickly back.

  • @kayleelaw1744
    @kayleelaw1744 2 년 전 +570

    Hey Veritasium, to further prove the point that counter-steering is automatically happening to keep the rider-less bike stable, did you ever try rolling the modified bike with the steering locked to see if it stays upright while rider-less rolling down the hill? It would be a powerful image to watch that bike fail to be upright.

    • @XtreeM_FaiL
      @XtreeM_FaiL 2 년 전 +35

      It will fall as fast as stationary bike.

    • @a2z726
      @a2z726 2 년 전 +19

      I was waiting for that.

    • @gabrielschoene5725
      @gabrielschoene5725 2 년 전 +29

      The minuitephysics video showed this demonstration. Worth checking out

    • @deusexaethera
      @deusexaethera 2 년 전 +16

      It's been done before. Bicycles with locked steering fall over immediately when rolling.

    • @yashkumar8245
      @yashkumar8245 2 년 전 +2

      I was about to ask this