Originally Posted by
pesty
To my knowledge, Shimano does not make a BB30 compatible bottom bracket. FSA has both bb30 and "Mega Exo". Mega Exo should be compatible with a Shimano BB, but BB30 (and BB386) absolutely will not fit.
My Cannondale came with a BB30 FSA crank and I had to get an adapter to convert it to Shimano as the bb was plagued by creaking.. At first I tried just using a push-on type but that did not last. I eventually converted it with a bb from praxis. I have had no issues in 3 years and no more bb-30 creaking.
Another bike I have came with a Campy tapered crank. I put external cup Ultegra bb (22mm) and am running a vintage look FSA Mega-exo crank.