Originally Posted by
Racer Ex
The set up question for this theory is:
Then that should apply to the whole back of the bike, correct?
Nope
Originally Posted by
Racer Ex
It doesn't because that assumption isn't valid though on face value it looks like it could be. You shape flow and attach dirty air as much as possible to stop turbulence in the first place or reduce/remove it when you can, which is what an aero post does, just like shaped seat stays, chain stays, and a disc rear wheel, all of which sit behind that same dirty air.
If you really want to clean up the dirty air created by the legs, you can remove the top tube. That's what Mr. Tiemeyer told me was the reason that his team did that on this bike:
