-
I'd avoid bb30 like the plague, pressfit 30 or 86 would be a more sensible option they are more common now, but BSA if you want a simple creak free life
It's extremely unlikely that a craft framebuilder has the kit to machine a BB30 shell. PF30 maybe. Not sure about shitbb86 and othersuch nonsense.
xDOMx Ignore @Amey regarding BB30 / PF30 - neither is 'shimano adapated / approved / whatever'. Both take a 30mm axle, both require adapters to work with 24mm cranks, of which there is a plethoria of options, but honestly if you want to run 24mm cranks go with BSA for an easy lyfe.
Howard
I'd avoid bb30 like the plague, pressfit 30 or 86 would be a more sensible option they are more common now, but BSA if you want a simple creak free life