Originally Posted by
mattm
And on that note I did a "ramp" test on the Tacx earlier tonight.
One thing that confuses me is the Tacx reads about 25w lower than the Power2Max cranks.. so my FTP is either 262w or about 285w..
I hear there's a way to sync the Tacx to the P2M (or any external power meter), I need to get on that I guess. Explains why "100%" of my FTP on the Tacx felt so hard..
I think it's called 'Power Match'
I'm having the same issue with my Kickr, though not as bad as 25w. About 5-10w when at or above threshold, pretty spot on for z2 stuff though. A spin down helped tremendously. I just do Zwift on the computer but keep my Garmin running so I can see my *real* watts and adjust the ERG setting accordingly. So yesterday's 4x5's @ 290ish were actually 300ish per Garmin. Annoyingly it shows the lower number on Strava though so now I seem more out of shape than I already was
