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..
Is that differential outdoor power numbers, if so that's about right. We're it becomes a PITA, is when you try to calculate that into your tss, ftp, etc. Now Cycling Analytics does an indoors modifier, which mine is set at 10% (which is probably more like 8% but 10 is easier to translate).
Neo's are supposedly the gold standard for power reading, so if that's both indoors I'd probably believe the Tacx.