I just got a Tacx Flux S with a Shimano CS-R7000 cassette. My bike is a Canondale CAAD12 with a Shimano CS-5800 cassette.
I just installed the trainer and I’m hearing a mechanical sounds which seems to be coming from the chain. From what I see the chain doesn’t seem to align perfectly with the cassette on the trainer.
- Could it be because the cassette is not exactly the same between the bike and the trainer ?
- Do I need to tune the shifter a bit ? If so, does that mean I will have to tune that back before riding outside ? How do you guys deal with that ?