Originally Posted by
rapwithtom
A couple of times a year, on a windless day, I'll spend the workout riding a 3/4 mile loop that has no stop signs or traffic and has a 100' climb. I run this through GC and guestimate my CdA. It's been a great learning experience, with some surprising results. So far it hasn't helped me win any races...
Cool, ain't it? I've learned a lot from measuring CdA (and a little bit of measuring Crr). The main thing I've learned is that there are lots of small things you can do that together add up to reasonably large benefit.