Spotted...

Depends. I was never a serious mtb'er.. single-speeders would only do legs in conjection with back sack and crack and only when extremely pissed for a dare. XC racers though... they'd take their eyebrows off if they thought it would save some weight.

I do believe that it is the duty of any hirsute people (male or female) who decide against bib shorts, to ensure that they do not expose a hairy arse to me when cycling. I do not like the sight of hairy arses.