this guy at my school said he has a motorcycle with 800hp l think he is lying then another guy said there is a bmw motorcycle with 1800 hp and that sounds like another lie

l do not know specific laws for each country and that but l do not think there is a limit to HP
Check out GhostRider is 499 HP yellow Busa.

http://youtube.com/watch?v=ud_gXPCMUDw

A German motorcycle manufacturer called Munch makes a 2000cc bike called the Mammoth. l believe that is the most powerful motorcycle around at the moment. Goodness knows how many prancing ponies but enough to put u flat on ur back watching the bike wheelie itself into the horizon.

Non street legal. well who knows? People all over the world r doing crazy things to their bikes' engines, starting with simple nitrous, ending with scientific sophistication & suicidal drag races. Most backyard racers favor the Hayabusa. But many r hardly recognizable!

Yeah, l saw that video, absolutely awesome. He rides past his buddy who has the cam on his bike doing 185 and he blows past him on a wheelie like he is standing still. l predict both of those young men will be dead soon, and no, there is no HP limit in the US or Canada.

l think hes asking about limits.

You need to check your states motor vehicle codes..

your states DMV website should have it.

-=Jim

One can argue about street legal bikes all day. but here are two of the most power full non street legal.
http://dragbike.com/dbnews/anmviewer.asp?a=4337&z=7

l do not think there is a limit on how many horsepower you can have on a motorcycle. Jay Leno have a jet engine hooked up on his bike. The main thing is to have control of those power.