Originally Posted by capsicum
Something doesn't ad up here. How can a rear lockup cause an endo?
I assume what happened was he was going along on a good clip, mashing away and putting slightly more weight on his handle bars. When his rear wheel suddenly locked up, his momentum pitched him foward at which point the stronger of his arms pushed the handle bar causing the front wheel to violently jerk in one direction at which point the bike pitched over and he flew off.