Feature request: Gain factor to calibrate power estimation from trainer

TrainerRoad Software
1

Dear TrainerRoad users,

I have recently realized that the power values estimated by my trainer (Tacx Flux) are way off the values measured on my pedals (Favero Assioma): trainers shows around 10-12% more power than measured at pedals*.

I would like TrainerRoad developers to add a feature that allows us to correct estimated values coming from the trainer. Nothing really fancy: just a proportional gain that you would define on your connected device.

I find a bit frustrating that power values are not really comparable/consistent between riding indoors and outdoors because of such a significant (at least in my setup) difference.

The more users interested on this the higher the probability that it gets in some future release.

Anyone else interested on this?

Regards,

Carles

*without considering the fact that power at pedals should be greater (2-3% as I have read somewhere) than at the wheel because of the transmission losses

1 Like
2

Are you calibrating the pedals and the trainer before each ride? I had a consistent difference between a SRAM crank-arm meter and my Kickr Core, after several dual-recording rides I decided to use the slope-adjust feature on the SRAM meter to bring it in line with the Kickr, since you can only calibrate the Kickr with the spin-down feature.

3

Make sure crank length settings are correct for the pedals.

But, if that’s not it, you can use PowerMatch and have TR use pedals as your power source.

It would be nice if you could adjust the slope for the trainer like you can on a Quarq or do a permanent offset in the TR app for your trainer so you didn’t have to leave a second Power Source hooked up though.