This is why competitive, enthusiast cyclists shave their legs. When that oozy wound gets hard and crackly, last thing you want in there is knotted hair. Russie, our sock model, got this trail rash in a MTB race. After crashing, the protocol is to immediately check the bike first, then rinse the wound with water from a bottle or Camel Back.
When I sliced my knee cap open last Fall in a Cross race, the same thing happened. I rinsed the wound with beer, cause there was so much of it around – bike was OK. Then back home, I scrubbed it like a Silkwood shower to get the gravel out. That wouldn’t have been possible if my knee was covered in ape-like hair.