Originally Posted by
WhyFi
It's a stack of assumptions and guesses. I'm fairly certain that they're just looking at your best 20-min power (probably within 6 weeks) and then taking 95% of that. If you don't have a power meter or a location suitable for that type of steady output (7+ mile stretch that's relatively uninterrupted), they're FTP estimate isn't going to be very good.
Ill have to wait til I get a power meter I think. 7 miles uninterrupted would be close to impossible.