Added: 2 months ago
From: vnews142
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  • where can I buy it :D ?

  • Great!

  • In Soviet Russia, bike rides you

  • O_O that is a sweet bike

  • why the bike has to be 6 ft tall?whats the point?get a motocycle,its faster its easy in parking enough tall and needs less gas.

  • @dino1981able You're American, aren't you?

  • @ogjbot no im from greece

  • @dino1981able er, the bicycle uses NO gas, so no dead bombed middle-east babies on your conscience - unless you hit one on your bicycle, and even then they're not so likely to die at 50kph.

  • @TVismyopiate i gues you right but i like motocycles and i share the same danger with a biker and im sure that 1lt per 48 klm at my 16 year old 650cm2 is more economic than an SUV you need to carrie your bike downtown waste 30 minutes to park it and then use the bike.believe me the gas you waste at the 2 days of weekend to go at park or mountain with your car to ride your bike is less than i waste all week riding my motocycle.and for the middle east thing tell that to the americans fat bastards.

  • @dino1981able Carry ones bike downtown? 30 MINUTES to park it? Only THEN use the bike? Huh? Mate, my bike IS my transport (I leave my car out of London as it's worthless in London 90% of the time). I don't carry my bike by car, I cycle it from the outskirts of London right into the City (centre) and back. Or to France. Or to Afghanistan, if I want! A bike +repair knowledge +a few spare parts+food = freedom. I respect bikers though, motorbikes are more efficient than SUVs for sure!

  • @TVismyopiate i guess we agree by disagree.many bikers are carrying their bike downtown.i believe you that you make many miles with your bicycle but some people don't do that.have long and safe miles with your bike and maybe one day meet we each other on a highway.

  • That looks...incredilbly hazardous, especially considering what the raised mode does to the center of gravity--you could see how hard the guy had to work just to stay upright.

  • @VulpisFoxfire Wrong. Because of the inverted pendulum effect a tallbike is more stable than that a standard sized bike. Think of a metronome. The main difficulty is usually starting and stopping, and the transformer bike seems to have cracked that one.

  • @dkahn400

    Do you think so? A metronome is an oscillating system, it is only stable in the sense that the oscillations are bounded. The inverted pendulum is even less stable. I think the stability of a bike is a function of the force generated by the wheels which is why you can take your hands off the handlebars at higher speed.

  • @versanil Having ridden penny-farthings, yes I do. The metronome illustrates that a bike with a higher centre of gravity falls more slowly than one with a lower C of G. Tall bikes are very stable and very easy to ride slowly. Gyroscopic force, if that's what you mean by "force generated by the wheels" is not required for bicycle stability. No-hands riding is possible because of the steering geometry of the bicycle and the counter-steering effect.

  • @dkahn400

    Yes, the headtube angle also plays a part in the stability, particularly at low speed, but putting the mass of the rider higher up is never going to be more stable than if it were lower. You would never design a car with the drivetrain high up or load a lorry with all the heavy items at the top. It's well understood that SUV are less stable for this very reason.

  • @versanil Trail rather than head tube angle. Head tube angle is important but the geometry of the fork and the size of the wheel are also involved. Unlike a car or lorry, a bicycle leans in a turn. A higher centre of gravity results in a slower rate of lean and thereby makes the bicycle more stable laterally.

  • @dkahn400

    Go and look at any description of an inverted pendulum. This straight out of Wikipedia: "Whereas a normal pendulum is stable when hanging downwards, an inverted pendulum is inherently unstable, and must be actively balanced in order to remain upright, either by applying a torque at the pivot point or by moving the pivot point horizontally as part of a feedback system. A simple demonstration is achieved by balancing an upturned broomstick on the end of one's finger."

  • @versanil You're getting there. Just like an inverted pendulum a bicycle, any bicycle, is inherently unstable. And just like an upturned broom, the higher the centre of gravity the less unstable it is.

  • @dkahn400

    haha, good one

  • @versanil The fact that raising the centre of gravity increases the stability of a bicycle is counter-intuitive and I'm not surprised that people struggle to accept it. Try balancing a broom on your finger as suggested in the Wikipedia article you quoted. Then try balancing a pencil. Which is more stable? Or speak to anyone who has ridden a tallbike. Better yet, try to find one and have a go yourself.

  • @dkahn400

    The reason it is counter intuitive is because it's wrong. Balancing a broom is nothing like balancing a bike. You do not have lateral control over the base of the bike because the tyres are on the ground, exerting friction force. In order to avoid falling off a bike the rider has to move around which is far more difficult the higher up it is because it is less stable and small deviations quickly become unmanageable. There is a good reason why nobody uses penny farthings

  • @versanil As anyone who has ridden a tallbike knows, it is right. The broom balancing analogy, which is a good one, comes from your own quote from Wikipedia. A rider does not balance a bike by "moving around" but by adjusting the steering to keep the line between the two ground contact patches beneath the centre of gravity. There are many readings why penny farthings are impractical, even dangerous, but lack of lateral stability is not one of them.

  • @dkahn400

    Yes that is why tall bikes are so popular today.

  • @versanil Again there are many reasons why tallbikes are not practical transport but lack of lateral stability is not one them. There is also such a thing as excessive stability. A touring bike, for example, is not responsive enough for a racing cyclist. On the other hand a twitchy track bike is not stable enough to suit the average commuter.

  • @dkahn400

    Well, you've sold me. I'm off to build an extremely high sided racing car. I will park it at my top heavy house.

  • @versanil (Sigh) Once again, a car is not a bicycle. It does not lean in a turn.

  • @dkahn400

    Sorry, I forgot about that. I am going to make an extremely tall racing motorbike.

  • @versanil Go ahead. It would be useless. But it's uselessness would not be due to any lack of lateral stability. Apart from many other features that would make it unsuitable as a racer it would be far too stable laterally. A motorcycle racer needs a responsive machine. But the responsiveness comes with a downside. See YT video 66ZtZ8m63qY for example. Low C of G. Excellent responsiveness. Poor lateral stability.

  • @dkahn400

    oh gawd, I hope you didn't hurt yourself. I can understand why you are proselyting for tall bikes these days.

  • @versanil I'm simply trying to illustrate a point about the effect of the height of the C of G on the lateral stability of a bicycle. I'm not promoting tallbikesas anything other than laterally stable. You are the one who seems to think that a high degree lateral stability is a good thing for racing. On the contrary designers try to make them responsive. The highside video simply illustrates a downside to this.

  • @dkahn400

    Yes they seem like a good idea but don't you find you are hitting your head on low bridges?

  • @versanil Not with careful route planning. :-)

  • @VulpisFoxfire I guess you didn't hear the wind in the background? I don't think he was struggling to stay upright particularly, just finding it hard to pedal :o)

    peace out & safe cycling

  • Looks like something out of the Kinetic Sculpture Race.

  • The best video that the phrase "like a boss" fits with :)

  • I bet it hurts like a bitch to fall from that height

  • WHERE THE FUCK I CAN GET ONE !!

  • that fork is from bender bike ? hahaha xD

  • i want one bad lol

  • A very clever invention, y would buy one.

  • rusia suck they are fucking assholes

  • @FateBladee Someone had been brainwashed by the video games and the hollywood machinery isn't it?

    Try thinking by yourself. Can become handy someday.

  • cool

  • I like it should work in flood area.

    If this sell in thailand last 2month you will get a million sell in a short time.

  • that's cool and all but..... will it blend??

  • これ欲しいな(ミ⌒▽⌒ミ)

  • حلوه الفكره

  • how does he get out of it?

  • i need one pleeeeeeease

  • i want one!

    

  • how did he lift the bike up so fast? ...and how the hell is he suppose to get down from it?

  • @badzo54321 you probably get on and off of it when its down low

  • optimus called he want's his penis back...

  • O..o; Amazing

  • nice chari

  • In soviet russia, bike rides you

  • Peter Fonda: Meanwhile in Russia...

  • Where can i get one? plz PM me, i have already searched google a bit

  • In soviet Russia...

  • It's more than meets the eye.

  • so, they do ride bikes ;-)

  • After watching all these YouTube videos, I'm moving to Russia, dammit.

  • what do you do when you stop moving? hihihihi

  • Super i want one,the best idea on biking world.When car hit ,human simply brakedown.Legs are save.

  • they see me rollin, they hatin

  • o BLAĆ !

  • Cool bike. Where's your matching helmet?

  • Падать наверно больно с высокой модификации)

  • genial

  • FAKE!

  • @carfansunited How is it fake? :')

  • I was like, did he fall?!! And then he has a low bike, and I'm like "Best bike in the world FTW!"

  • i wanna see it braking hard ...

  • I think is fake!

  • @Jonatan27cm I think you are a fake

  • doesnt this mean its going to hurt more when a car hits you? .....

  • @xDarkcynx in slow traffic you raise up to see over cars, in fast traffic you lower it.

  • in soviet Russia bike ride you

  • want so fucking bad

  • how the hell do you get on that thing?

  • i thought he fell off when he went down crossing the street

  • in Soviet Russia... uuhh... nevermind.

  • Yo la quieroooooo!!!!

  • To infinity, and beyond!

  • how does he, if he want stop ?

  • Can't wait to see him stopping at the traffic light.

  • too bad when it's in the compact mode it makes you look like a low-riding faggot.

  • then he gets hit by a car because of the stupid bike

  • @dannyboiiiiii94 Or, he's not hit as he's much more visible at height?

  • @Hyoscine you've put too much thought into this bro

  • In Soviet Russia... um.. erm..

  • @zlyable in soviet russia, bike controls you

  • Dear Santa...

  • I want 1 of those 4 christmas

  • Why?

  • @DeVentilator why not?

  • @DeVentilator cos' the drivers can see you and dont hit you?

  • @DeVentilator Because he can and you can't and why not, ssssssfekin cook manz. It's geni arse !!

  • @DeVentilator see above traffic

  • @DeVentilator Why not?

  • @DeVentilator so he can see over the cars perhaps?

  • @DeVentilator Why... not?

  • @vnews142 have you a more detailed picture of the joint?

  • necessito *--*

    

  • awesome, i want one for christmas daddy

  • what happens when you have to stop quickly and u have the bike extended up?

  • MAN IS TRUE SOVIET

  • Wow, Kerazy Russians do it again!

  • LIES IT IS FAKE I SAY LIES I TELL YOU LIES IT'S LIKE A ARROW TO THE KNEE!!!

  • what if you fell off?

  • that is the fucking koolest bike ever !

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