You’d think that, wouldn’t you. But the counterintuitive truth is that aero features give an even greater benefit for slower riders and there is convincing data to back it up. Basically it boils down to slower riders being out on the course for longer so have more time for the gains to accumulate.
Of course in absolute terms faster is better for aero gains.
Hmmm. Using stupid made up figures to make the maths easy...
So a pro is out on the course for, say 30 min on an un-aero bike. They're going really fast so they get a 10% benefit on the aero bike. So the pro gets a 3 minute saving
I'm out on the course for 60min. I'm going slower so I don't get so much benefit. I only get (say) 6%. So I get a 3.6 minute saving. More than the pro! Go me!
So I'd be getting a healthy absolute benefit in terms of minutes saved. But it's still a dwindling
percentage. Those 3.6 min would be enough to give me a win if I was in a competition with a bunch of other similar old unfit duffers. But as it's a small percentage, if one of my competitor duffers decided to be unsportsmanlike and did a bit of training to get fitter than me they could quite easily negate my advantage.
Or am I missing the point completely?