Done an outdoor ride today which had some hill repeats on a 15 minute climb @ 6/7% and got my best 15 minute power numbers of 254 @ 59kg I was wondering if I could use this number to guesstimate my 20 minute power subsequently at FTP number from it? Any help would be awesome

Can you estimate 20 minute power from 15 minute power

ethan_chall February 27, 2021, 11:04pm 6

Are you saying you can estimate an FTP number from 8 minute power x 0.9?

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