[Closed] Shaving your legs - the definitive answer

You are half right and maybe completely, depending on your meaning of "vary much":

The faster rider saves 1:26, while the slower rider saves 1:47.

A 24% difference, 30kph vs 40kph base speeds (times based on 20km)

Given the slower rider spends 33% longer on the road, I think that kind of proves my point 😉

BTW what is the cervelo page - you seem to be the only one on this thread to mention it?

http://www.cervelo.com/en/engineering/thinking-and-processes/slow-vs-fast-riders.html from an aero thread.

As speed decreases there aero becomes less relevant so there must be a speed at which point aero is pointless I think.