yeah about six months ago i was showing off on my best friends little brothers xr 80, doing knee wheelies (sport bike style!!!) and i had it down where i could ride vertical ones for 1/8 mi or so, down his long flat country road, well long funny story short, took it back and broke my thumb in 2 places, im lucky i was going about 20-25 mph w/out a helmet and the township just paved the road 2 hr. before so it was still sticky hot, well i slide down the rooad about 10ft. and the bike flipped twice, i was covered in road rash and a broken thumb, i walked away lucky, but im still doing it all today so.... "u never learn!", i also managed to stabb my self in the glory region with my belt, i guess it hooked up in to the road!