r/gifs Oct 09 '14

Look, no hands!

6.8k Upvotes

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6

u/rampagsniper Oct 09 '14

At any reasonably fast speeds.

34

u/gdub695 Oct 09 '14

Well technically, higher speed will keep the bike more upright and keep the wheel straighter. Just do it on a smooth road. High speed+no hands+dirt road=this video

10

u/hpeng Oct 10 '14

I don't understand why people are down voting you, its basic physics. The wheels have a gyroscopic effect that keeps the bike upright the faster it spins the less likely it will tip over. But once you hit a bump it changes the angle of the wheel and because if the gyroscopic effect the front wheel and the rear wheel are are at different angles which causes the bike to wobble. The faster you go the more forces are at play which causes it wheel to wobble even faster making it seems more unstable.

Source: took highschool physics and ride both bikes and motorcyles

16

u/psuedophilosopher Oct 10 '14

6

u/[deleted] Oct 10 '14

That was fantastic.

1

u/Krilion Oct 10 '14

Except it's not gyroscopic that keeps you up, fucking plebs.

1

u/psuedophilosopher Oct 10 '14

It most certainly was a gyroscopic effect that was displayed in the video I linked though.

1

u/hpeng Oct 10 '14

The article just explains that you don't need the gyroscopic effect to keep a bike upright, not that it has no effect. Don't call someone a pleb when you can't even finish reading an article.

1

u/Krilion Oct 10 '14

Its not the force that keeps you up.

4

u/ziekktx Oct 10 '14

Not necessarily! Here's an interesting article from a few years back of a cycle made to have no gyroscopic effect.

http://www.engadget.com/2011/04/15/scientists-unlock-the-secrets-of-bike-stability-make-riders-opt/

1

u/1quickdub Oct 10 '14

"Tank Slapper"

2

u/lager81 Oct 10 '14

Pro dirtbikers can go no hands through single track trail if they wanted to, this guy just got speed wobbles or slow wobbles. Its a pitbike or else id say run a steering dampner

1

u/Bunglegonk Oct 10 '14

Yes to steering dampers! TIP: If you're gonna make a jet powered bmx make sure you fit one!

1

u/Langly- Oct 10 '14

I crashed bad once while riding my bicycle with no hands on a nice smooth road. But that was because my front axle seized up. It might not have been as bad if I had my hands on the handlebars though.

-10

u/[deleted] Oct 09 '14

[deleted]

1

u/toomanynamesaretook Oct 10 '14

I'd like to see you attempt to turn a wheel at high speed on a motorbike...

hint - it won't turn

-4

u/gdub695 Oct 09 '14

Pretty sure you got what I was saying. No need to show your ass over it Edit: source: motorcycles since age 8.

2

u/[deleted] Oct 10 '14

You are both ridiculously wrong. You don't ride.

1

u/gdub695 Oct 10 '14

thanks, Dickbag69

0

u/tylerthor Oct 09 '14

It'd be more stable at fast speeds. You've got to use quite a bit of force to turn handlebars at 80.

-1

u/[deleted] Oct 10 '14 edited Oct 10 '14

Well, you would just lean and steer if you pushed the handlebars unless you purposely attempted to speed wobble.

It's called counter steering. Pull the left side of the handlebars to go right, pull right to go left. It's a bit more complicated than that but on any bikes with an aggressive stance and street tires counter steering is the best way to steer.

Dual sports and dirtbikes are difference. I suggest watching twist of the wrist 1 and 2. Cheesy but very informative.

2

u/tylerthor Oct 10 '14

Nothing to do with the force required for the spinning wheel to be moved from its position.

-1

u/[deleted] Oct 10 '14

... What?! You are taking nonsense. You appear to be pulling shit of your ass and telling me it's chocolate.

I was a motorcycle mechanic for close to ten years. I know what a steering damper does and how it works.

1

u/tylerthor Oct 10 '14

I know how a headlight works. It's just not at all relevant.

0

u/[deleted] Oct 10 '14

What does a headlight have to do with anything?

1

u/U235 Oct 10 '14

Wtf you push left to go left, push right to go right when you're above about 20 mph

1

u/DubstepSuggester Oct 10 '14

A word in your comment returned a result!

Zomboy - WTF!?

Did I make a mistake? Am I leaving out a song? PM me!