The no benefits part. People have already mentioned the massages if you race, the ease of cleaning road rash if you crash (racing or not), and the reduced amount of sun block needed. You have to weight the pros and cons (and there are some of each). I have decided I'd rather not shave, but i have noticed almost twice the normal consumption of sunblock despite riding fewer miles now than when I shaved. Then again, my sunburns when I forget sunblock are less sever since the hair provides some amount of shade.

I do think justkeepspining should have supported the statement instead of just posting an unsupported "false", but then again, the support is already in earlier posts.