When I’m Zwifting and going down hill I put my gears into the big ring in the front and the highest gears / smallest cogs in het back. The chain and cassette makes more noise at that time than with other gear selections. Could this be because the cassette is new (came with the Kickr) and the chain is already 1.000 km old? Any other possible cause?
I ride with a BMC SLR02 Disc 2018 (thru axle) on the newest model Kickr.