UT and PT both have the same shell requirements per campy spec.

UT cranksets should not be shimmed. The wave washer provides proper preload and is used by more than just Campagnolo. Most (if not all) threads and conversations about shimming UT cranksets were propagated by a single person (rouge mechanic) and his thoughts on the subject are utterly worthless.



*the only acceptable time you should ever shim a campy crankset is if the bb shell is under spec. In this case, you would only shim the shell back to spec and then would install the crankset per Campagnolo instructions.