i don't think i've biffed like Dr. Pimper but i have had some bad ones. i was with a few of my friends and we were riding down this steep hill and hitting a jump at the bottom and i tried to do a backflip and landed on my front tire. it bent my forks back under the frame and i broke my foot. it kinda sucked but it was worth it. gotta new bike from my friends, powerlite spitfire