@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.
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.
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.
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.
@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.
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.
@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.
@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.
@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.
@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)
where can I buy it :D ?
mccar1475 3 weeks ago
Great!
jaSindar 4 weeks ago
In Soviet Russia, bike rides you
TheStandard2 1 month ago
O_O that is a sweet bike
drftme 1 month ago
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 1 month ago
@dino1981able You're American, aren't you?
ogjbot 1 month ago
@ogjbot no im from greece
dino1981able 1 month ago
@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 1 month ago
@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 1 month ago
@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 1 month ago
@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.
dino1981able 1 month ago
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 1 month ago
@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 1 month ago
@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 1 month ago
@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 1 month ago
@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 1 month ago
@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 1 month ago
@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 1 month ago
@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 1 month ago
@dkahn400
haha, good one
versanil 1 month ago
@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 1 month ago
@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 1 month ago
@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 1 month ago
@dkahn400
Yes that is why tall bikes are so popular today.
versanil 1 month ago
@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 1 month ago
@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 1 month ago
@versanil (Sigh) Once again, a car is not a bicycle. It does not lean in a turn.
dkahn400 1 month ago
@dkahn400
Sorry, I forgot about that. I am going to make an extremely tall racing motorbike.
versanil 1 month ago
@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 1 month ago
@dkahn400
oh gawd, I hope you didn't hurt yourself. I can understand why you are proselyting for tall bikes these days.
versanil 1 month ago
@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 1 month ago
@dkahn400
Yes they seem like a good idea but don't you find you are hitting your head on low bridges?
versanil 1 month ago
@versanil Not with careful route planning. :-)
dkahn400 1 month ago
@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
ynotnilknarf39 1 month ago
Looks like something out of the Kinetic Sculpture Race.
Gianavel 1 month ago
The best video that the phrase "like a boss" fits with :)
jotatanka 2 months ago
I bet it hurts like a bitch to fall from that height
Haaaavard94 2 months ago
WHERE THE FUCK I CAN GET ONE !!
JessyLaiho 2 months ago
that fork is from bender bike ? hahaha xD
MikeCanni 2 months ago
i want one bad lol
STIIKYS 2 months ago
A very clever invention, y would buy one.
ELP0I0 2 months ago
rusia suck they are fucking assholes
FateBladee 2 months ago
@FateBladee Someone had been brainwashed by the video games and the hollywood machinery isn't it?
Try thinking by yourself. Can become handy someday.
ELP0I0 2 months ago 2
cool
mamnaka7 2 months ago
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.
nanydave 2 months ago
that's cool and all but..... will it blend??
Hope4BestPlan4Worst 2 months ago
これ欲しいな(ミ⌒▽⌒ミ)
GOROFX 2 months ago
حلوه الفكره
yoha11112 2 months ago
how does he get out of it?
orikzzz 2 months ago
i need one pleeeeeeease
araaesh 2 months ago
i want one!
threenorns3 2 months ago
how did he lift the bike up so fast? ...and how the hell is he suppose to get down from it?
badzo54321 2 months ago
@badzo54321 you probably get on and off of it when its down low
dieatastefuldeath 1 month ago
optimus called he want's his penis back...
blazm6 2 months ago
O..o; Amazing
saturnwing 2 months ago
nice chari
TheKaz5150 2 months ago
In soviet russia, bike rides you
jm19422 2 months ago 2
Peter Fonda: Meanwhile in Russia...
Cohonees 2 months ago
Where can i get one? plz PM me, i have already searched google a bit
FrederikLambert 2 months ago
In soviet Russia...
Galardomond 2 months ago
It's more than meets the eye.
jetquiroz 2 months ago 2
so, they do ride bikes ;-)
keirinberlin 2 months ago
After watching all these YouTube videos, I'm moving to Russia, dammit.
MetalGear753 2 months ago 18
what do you do when you stop moving? hihihihi
whoispedrocosta 2 months ago
Super i want one,the best idea on biking world.When car hit ,human simply brakedown.Legs are save.
Skubany1000 2 months ago
they see me rollin, they hatin
artilleryboy1 2 months ago
o BLAĆ !
LANZAROT999 2 months ago
Cool bike. Where's your matching helmet?
HaagenDan 2 months ago 3
Падать наверно больно с высокой модификации)
KotCry 2 months ago
genial
IRONLESB 2 months ago
FAKE!
carfansunited 2 months ago
@carfansunited How is it fake? :')
KieranMorriss 2 months ago
I was like, did he fall?!! And then he has a low bike, and I'm like "Best bike in the world FTW!"
MrMattiasHallen 2 months ago
i wanna see it braking hard ...
TehVag 2 months ago
I think is fake!
Jonatan27cm 2 months ago
@Jonatan27cm I think you are a fake
bajatoma 2 months ago
doesnt this mean its going to hurt more when a car hits you? .....
xDarkcynx 2 months ago
@xDarkcynx in slow traffic you raise up to see over cars, in fast traffic you lower it.
1111Davo1 2 months ago
in soviet Russia bike ride you
kaidenftw 2 months ago
want so fucking bad
KINGOFHELLANDYOU 2 months ago
how the hell do you get on that thing?
tarjr94 2 months ago
i thought he fell off when he went down crossing the street
Starkinator64 2 months ago
in Soviet Russia... uuhh... nevermind.
quetzalcoatl24 2 months ago
Yo la quieroooooo!!!!
QuantiumMX 2 months ago
To infinity, and beyond!
churrianero007 2 months ago
how does he, if he want stop ?
ScienceEtVerite 2 months ago
Can't wait to see him stopping at the traffic light.
MroStudios 2 months ago
too bad when it's in the compact mode it makes you look like a low-riding faggot.
MexicansStealShoes 2 months ago
then he gets hit by a car because of the stupid bike
dannyboiiiiii94 2 months ago
@dannyboiiiiii94 Or, he's not hit as he's much more visible at height?
Hyoscine 2 months ago
@Hyoscine you've put too much thought into this bro
dannyboiiiiii94 2 months ago
In Soviet Russia... um.. erm..
zlyable 2 months ago 2
@zlyable in soviet russia, bike controls you
Aeonation 2 months ago
Dear Santa...
iDrunkText 2 months ago 3
I want 1 of those 4 christmas
moonie2927 2 months ago
Why?
DeVentilator 2 months ago 40
@DeVentilator why not?
micah960 2 months ago
@DeVentilator cos' the drivers can see you and dont hit you?
kol1n4 2 months ago
@DeVentilator Because he can and you can't and why not, ssssssfekin cook manz. It's geni arse !!
twistedbass15 2 months ago
@DeVentilator see above traffic
drum2survive 2 months ago
@DeVentilator Why not?
marchpig 2 months ago 5
@DeVentilator so he can see over the cars perhaps?
AngelusDlion 1 month ago
@DeVentilator Why... not?
einXtein 1 month ago
@vnews142 have you a more detailed picture of the joint?
JamielsMu 2 months ago
necessito *--*
marcelozokis 2 months ago
awesome, i want one for christmas daddy
Jubukio 2 months ago
This has been flagged as spam show
what happens when you have to stop quickly and u have the bike extended up? failbike
CrazyAirborne2 2 months ago
This has been flagged as spam show
what happens when you have to stop quickly and u have the bike extended up?
CrazyAirborne2 2 months ago
This has been flagged as spam show
what happens when you have to stop quickly and u have the bike extended up?
CrazyAirborne2 2 months ago
what happens when you have to stop quickly and u have the bike extended up?
CrazyAirborne2 2 months ago
MAN IS TRUE SOVIET
EmperorOfMars 2 months ago
Wow, Kerazy Russians do it again!
utubesqueeze 2 months ago
LIES IT IS FAKE I SAY LIES I TELL YOU LIES IT'S LIKE A ARROW TO THE KNEE!!!
BrushfireNAVY 2 months ago
what if you fell off?
DarthLoI 2 months ago
that is the fucking koolest bike ever !
zero00tolerance 2 months ago 76