An interesting thing I discovered on this wonderful little user modified encyclopedia.

You should read the first paragraph of the first link and then read the last paragraph of the second.
(or just read it all)

http://en.wikipedia.org/wiki/Kawasaki_Ninja_ZX-14R

http://en.wikipedia.org/wiki/Gentlemen%27s_agreement

 

Surprised bikes have a gentlmans agreement... Most chinese and japanese cars have one... there not allowed to be over a certain amount of horsepower..