Weight 177 lbs
Bike 2020 Tarmac with stock wheels and tires
PM Stages left side only crank, installed when I bought the bike in May.
Distance 10 miles, rolling hills, nothing too steep at all.
Avg Speed 20.6 mph
Avg watts 275
My ftp is 285. I would guess the effort level at 80%. I could have easily maintained 275 watts for over an hour and probably closer to two hours. I cannot figure out why I am so slow on that kind of power. I wore a cycling jersey and shorts, just regular cycling gear, nothing too loose fitting. I rode the hoods like I normally do on the road bike.
Is my PM likely reading way too high? When I rode the trainer all Winter, I used P-1 pedals, left side only, and my ftp slowly increased from 240 to 260. Once I got outside and started using the Tarmac, my ftp went up to 275 and then the last test it went to 285. I held 300 watts for twenty minutes in a test done a few weeks ago. Normally my VO2 max intervals are in the 300-315 watts range.