Its been posted in magazines like dirtwheels for instance that the pro quads and pro dirtbike guys when the race on the outdoor nationals they race at some of the same tracks and they recored their lap times and the pro quad guys were faster. Im not saying that every quad rider is faster than the dirt bike rider. It just If you put the best quad rider against the best dike bike rider the quad rider has an advantage. I seen quads get their *** whiped to by dirt bike guys at some tracks, and I seen it the other way around. It all depends on the rider and the track.