What is 636?
The greatest motorcycle ever manufactured. A slang term for the Kawasaki Ninja ZX6r built from 2003-2006, because it used a displacement of 636cc's. This was a departure from the usual 599cc displacement used by the big 4 (kawasaki, honda, suzuki, yamaha) for middle-weight 4 cylinder sportbikes. Manufacture of the 636 ceased after 2006 as kawasaki reverted back to a strictly 599cc engine for its new zx6r. An all around popular bike for club racing, stunting, and street riding.
That 636 is fast as shit.
I got passed by a guy on a blue 636 in turn 10.