I have a Basso carbon frame that needs a crankset upgrade. The original crankset is a Miche "EVO Max" with 24mm bearings on both sides. Basso said that the frame is compatible with BB 72 SHIMANO or any other brand with PRESS-FIT system size 86.5 X 41 - axle diameter 24mm.

Would I need to extract the original cups out of the frame and install a new BB? Since Shimano also uses 24mm bearings on both sides, would any Hollowtech II crankset work, or would it need to be specific for Pressfit?

Thanks in advance!