So I have a stage race coming up this weekend and currently do not own a TT bike. For this race there’s a 9 mile out and back flat TT. I own a Canyon Aeroad disc with Enve 5.6 wheels and my teammate is kind enough to let me borrow his Cervelo P2 with aluminum wheels.
My question is, which might be faster? I’ve been fitted for my Canyon so I’m very comfortable getting low and my concern is that my position on the TT bike won’t be anywhere near as comfortable and could cost me maybe 30W in sustainable power. Since the total duration is about 20 minutes, the apples to apples comparison between bikes is say 1-2 mph faster which can be over a minute. But with an aero road bike and perhaps less aero TT bike, would the position and potential loss of power equal out?