The only injury i had was pedal bite (onza) while riding downstairs at very high speed and not wearing chin protectors. It was ok after i put a patch on it and it wouldnt have happened if i DID wear the guards.
Generally i have been doing a lots of downhills and trials since i started unicycling (last year) and i had no serious injury at all. I hope it will not change after i learn how to coast and try coasting downhill 🙂
