In fact, tests show that EVO has a mere 14g more drag than the best “aero” frames without their added weight and harsh ride. → http://www.bikeworldnews.com/...s-pros-2013-edition/
Does anyone have a link to a study that includes the above data about how the Cannondale SuperSix Evo compares to aero frames in the wind tunnel?
I can’t find the Trek Madone whitepaper online, but there’s a copy of the wind tunnel data on this weightweenies thread. It doesn’t look like that’s true even at low yaw angles. The minimum is 150-250g above aero bikes in a regime where low frontal area is very important. At higher yaw angles, the difference is more pronounced. An extra 150g is at least a 15% drag increase.
They don’t specify what speed, etc the test was run at, but I have a hard time believing there is such a disconnect between Cdale and Trek data.
Edit: You can also check out the (2011) Tour magazine aero road bike test, where the supersix beats out several older aero bikes at low yaw.