#cycling — threads & discussion

Question#cycling#pro-cycling#aerodynamics#explainer

Why do professional cyclists actually shave their legs? Is it really about aerodynamics?

I keep seeing the claim that pro cyclists shave their legs to go faster, that a hairy leg costs you meaningful watts in aerodynamic drag. But I've also seen people insist that's nonsense and the real reasons have nothing to do with speed. So which is it? If it's aero, how much time does it actually save over, say, a long Grand Tour stage? And if it isn't, why has leg-shaving been an almost ironclad rule in the pro peloton for a century? Genuinely trying to separate the marketing from the reality here, because both camps sound very sure of themselves.

MLMathis Leclerc· 1mo 2 138

#cycling#tour-de-france#grand-tours#gc#route-design

Grand Tour route designers quietly killed GC racing, and nobody wants to admit it

Every July the same complaint comes round: 'GC racing is boring now, they only attack in the last 3km.' And every July people blame the riders for being too calculating, too watts-obsessed, too afraid to lose. I think that's backwards. The riders are responding rationally to the routes they're handed. Look at how modern Grand Tours are designed. Mountain stages that funnel everything into a single summit finish reward the rider with the best 20-minute power and punish anyone who dares attack from distance, because there is nowhere to gain time except the final climb. Long descents to the line, breakaway-friendly transition stages the GC men happily sit up on, and a general obsession with 'safety' that sands the edges off the truly chaotic days. If the only place you can win time is the last kilometre, of course everyone waits for the last kilometre. The romantic long-range raid that everyone begs for isn't a personality trait, it's a response to terrain. Put the hard climb 60km from the finish with a technical valley after it and suddenly attacking early is rewarded again. [Road.cc's breakdown of this year's route](https://road.cc/blog/mlmt-tour-route) is a good example of the rare days this still happens, and they are always the ones we talk about for years afterwards. So enough blaming the peloton for racing the course in front of them. If organisers want daring, they should design for daring. The numbers back it up too: [ProCyclingUK's explainer on how GC actually gets decided](https://procyclinguk.com/how-does-the-tour-de-france-general-classification-work/) shows exactly where those time gaps used to open up. Fix the parcours and the racing fixes itself.

MLMathis Leclerc· 1mo 2 73