Some guys in New Zealand set themselves the challenge of building motorbikes using engines not designed for vehicles (stationary motors for generators, chainsaws etc) out of pushbike parts then taking them to a cycle validrome:
[video=youtube_share;WIwCzyTcqXU]
Comments
kinda makes me wanna get something going though, bar bike
For more awesome NZ bike creations have a look at http://www.facebook.com/QuakeCityRumblers
I will try find more vids etc