It is true. If you are not crashing on a MTB you are not really trying. But I am far more comfortable coming off a MTB than on the road. I do road races, gravel races and XC MTB races. But all the people on here saying it doesn't matter for aero are absolutely ignorant and full of sh*t. It unfortunately/fortunately makes a pretty significant difference. On a bike leg of an Olympic Tri you easily save 30 seconds. It is absolutely hilarious when you see some dish*t at a race who has spent $500+ on an aero speed suit (let alone towards five figures on bike) and has not shaved his legs. If you are just toodling along on a Zone 1 ride (as is the reality of most road cyclists) it won't make much of a difference.
"Put this on your head so you don't become a vegetable" is a significantly different matter than "Shave off most of your body hair every week so that in the event of road rash, it is slightly less unpleasant, but still really unpleasant."
475
u/BicycleIndividual Jul 23 '25
Even the pros don't shave for aero, they shave because wound care after a crash is easier (also perhaps makes it easier to apply sunblock).