I have Specialized Roubaix that has a Shimano 105 groupset. It's fine when cycling on the road however when I move the bike to my new (4 weeks old) Wahoo Kickr Core it makes a grinding noise when pedaling. The grinding noise feels\sounds like it's coming from the rear where the chain meets cassette.
I put a 105 11 speed cassette on the Kicr and when the bike is not on the kicr and I spin the freehub it doesn't make a sound. The gears move up and down fine on both the kickr and bike.
When I first got the kickr there was a noise but not enough to bother me however after taking the bike off for an outdoor spin yesterday I've placed it back on the kickr and it makes a terrible grinding noise. I've taken it off and on a few times in case, I hadn't seated it properly however that has made no difference.
Can anyone share any ideas or tips for what to do next?
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