Originally Posted by
DaveSSS
The SRAM flat top chain works just fine with both Campy and Shimano GRX cranks and Campy 12 12 cassettes. The combination is incredibly quiet. I tried a Shimano 12 chain and found that it didn't work great with a SRAM AXS cassette. I had shifting problems in the 13-14-15 range. If someone wanted to create a mixed drivetrain with a Shimano 12 cassette, it would work fine.
I am using a Rotor 11-36 12s cassette, Dura Ace 7800 crank, YBN chain, and AXS red FD, RD, and shifters. Its just ok but part of it is the B stop, I am have it maxed out to handle the 36T on the regular RD. I am going to try a Campy Record chain next, then, the 36T RD after that.