u/shelled15

I've been banging my head against this one for a while. I bought a kickr bike pro earlier this year and took my old kickr pro v6 (or maybe v5 i cant remember) up to my parents so I would have it there when i visit them.

When i made the swap I got the sense that my power numbers were better on the Pro, but it seemed subtle and figured it might just be from training (noticed lower heart-rate for the same effort). When I transitioned to outdoor workouts (Assioma Favero Pro MX-2) i seemed to struggle a bit to hit my power targets. I kinda chalked it up to outdoor riding being a bit harder to maintain power than just sitting in ERG mode.

Recently with the wildfires i spent a week on the trainer and I was just crushing workouts easy...they were just too easy. So i decided to throw on my favero pedals onto the bike and noticed the pedals were reading 6w-10w lower than the Kickr Bike. It seemed to be worse at higher powers. I figured maybe my pedals were mis-calibrated so took them off, re-torqued to spec, re-calibrated and saw the same behavior. Without a 3rd power meter i couldn't 100% verify the accuracy of either.

When i visited my parents over the weekend, i decided to test with my old Kickr V6, and noticed the pedals and the kickr semed to match exactly (within 1w of each other). So it does *seem* that the kickr bike is reading high. Im wondering if anyone else has experienced this.

It seems like it kinda would be a PITA to return this bike, but also it is a PITA to keep swapping pedals back and forth. I kinda wish we had the ability to just bake in a +/- power offset in the bike where it can just adjust readings up/down by a percentage and that would probably mostly solve this issue for me. I guess in theory I could write some software that acts as a proxy and adjusts the values i get over wifi and forward the adjusted values to Zwift, but it would be interesting to know who else out there has this problem.