“You’ll save about a minute over 40 kms with an aero frame. But do consider that even some of the “aero” frames aren’t really that aero. Some of the high end carbo bikes have downtube aspect ratios around 1.6 to 1. That’s not that aero. At least Cervelo has got the tubing thing correct.”
I’ve been unable to find wind tunnel data that supports this claim of one minute per 40 km. for aero tubes. What is your source for this number?
We’ll be making an aero frame soon, just want to know if it’s worth bothering with aero tubes or we should get more radical with aero frame design.
Craig Calfee