On my Santana with Shimano Ultegra crankset there is noticeable tightening / loosening while rotating the cranks. I was suprised on the Calfee with FSA crankset / rings there is no detectable tightening / loosening. I am not sure if it is a function of the frame, crankset, rings or all three but it is noticeably improved on the Calfee.