I've recently bought a Tacx Flux S trainer and am really enjoying the smart trainer experience. I have a suspicion that the measured power is too high. I don't have a power meter so can't verify that. One thing that makes me doubt the power measurement is this:
I did a ride to GPX workout on the Tacx Desktop App, I uploaded a gpx file of a route that I do sometimes IRL. It's a 44 km route with around 800m elevation. I completed the virtual ride a lot quicker than the real ride ride: 1 hour 32 mins vs 1 hour 54 mins. I understand that it will be never be exactly the same time as in the virtual ride there is no breaking for corners and traffic and no wind, but I didn't expect the difference to be this big. Does anybody have a similar experience?
avg speed 28.6 km/h
avg heart rate: 126 bpm
avg 23.3 km/h
avg heart rate 140 bpm
So to me that looks as if the real ride took more effort but was slower.
Obviously I have calibrated the trainer. Trainer difficulty is at 100%