10-26-2009, 05:32 PM
For a bike engine, i would have to say the one in my bike is a ktm 530 exc-r. The engine is guaranted to beat any stock crotch rocket in a 0-80MPH race. It's a beauty with me on it, 100mph wheelie no problem. My next would be the old XR400 thumpers. Beasty man, just beasty.
One day your life will flash before your eyes. Make sure it's worth watching.