Originally Posted by
topflightpro
And as far as aero and depth, I saw somewhere once - can't find it now, sorry, - that the aero affect tends to plateau as you get deeper. Meaning the aero difference between 20 mm rim and 30 mm is much greater than between 30mm and 40mm.
Hmm, this study would be interesting to see. It goes against the whole "you don't get aero until 40-50mm+" argument.