110cc china powered bicycle.
 

Re: 110cc china powered bicycle.
 

Lol! That's wild! He was booking on that thing 8)

I don't know if I would be that trusting of the wheel bearings and brakes on a bicycle like that.

20mph maybe. Not 53.

I think maybe I'd want a helmet with a little more padding to it as well... Lol!
Kudos on the ingenuity though, I never thought a bicycle would take that much power :)

Dude, you just built a motorcycle with a weak frame and inadequate wheels and brakes.

Why would that young man take an engine out of a nice dirt bike, and install it on a bicycle!? 8O

I fear for that young man's safety. :( His brakes and suspension are inadequate, and the engine will likely destroy the rear wheel very quickly, perhaps at the worst possible moment. :?

Spud :(

Kind of like a 1900's bike. Cool but not a good idea.

Well, I'm flirting with similar ideas, though I prefer the approach of FX Cycles and Motopeds for example:

http://www.fxbikes.com/

http://www.motopeds.com/

Probably it won't turn into anything meaningful, but I'd like to try out.

I like the motopeds idea. Use an already in preduction motorcycle frame and then parts designed for a motorcycle or heavy duty bicycle use.

In our Province, we could build a 50cc bike (like the two that Krasi linked to, but without pedals), equip it with lights, horn and battery and have it inspected. It would then qualify as a scooter, if it had a CVT (rather than gears).

Looks like a cross between a trials bike and a downhill mountain bike. I like it. :P

did he murder the bicycle or the motocross? im not sure...lol