►More of Stacy's Story HERE! http://win.gs/StacyKohut Meet a rare breed of devoted racer: Stacy Kohut, the world's fastest mountain biker on four wheels. Brought up in a drag racing family, as a grom Kohut rode full throttle into everything — BMX, skateboarding, motocross, ski racing. An accident on a swingset in 1992 nearly ended all that.