UT can do two noises, which sound the same and are either bearings or chainring bolts which need tightening. The coupling is solid if the bolt is tight
You forgot the sound from bearings knocking back and forth sideways because the wavy washer is crushed or the BB shell is too short beyond campag spec.
UT can do two noises, which sound the same and are either bearings or chainring bolts which need tightening. The coupling is solid if the bolt is tight