I do all my TR workouts on a roadbike with Assioma’s, most of it indoors with a Kickr using PowerMatch, but also the occasional outdoor workout. This works very well for me but unfortunately I need to replace my BB now and the LBS is waiting on stock, so no roadbike.
I do also have a MTB with a Stages Gen1 powermeter on it which, based on my testing (actually put the Assiomas on there to compare and recorded with two headunits, had some spare time during lockdowns:-)), reads on average 20W higher.
My question is, what is the best way now to perform outdoor workouts now (I cannot put the MTB on the trainer). Is it enough to up my FTP on my Garmin headunit with 20W and just send the TR workout there? Or do I also need to increase my FTP on the TR side? If I need to change my FTP on the TR side, won’t that mess up my progression levels?
Another option I guess is to put the Assiomas on my MTB, but I also do some trail riding and constantly swapping pedals would get old very quickly.