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FTP on hills vs flat - why different?

Posted: Sun Mar 24, 2019 4:20 pm
by LeDuke
bm0p700f wrote:My best ever power for 50minutes was on a flat windy airfield circuit. Long hills have me producing less. I don't ride long hills often though.
The problem with long hills is that, by definition, you’d gain enough elevation such that you’d lose some power due to decrease in available oxygen.

If I started at my FTP and matching HR, and kept riding at that HR for an hour, even with perfect hydration I’d lose 30-40w by the end. If I left from home, I’d be going from 6,400ft to ~11,000ft.

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