Originally Posted by
BoSoxYacht
I really have no idea why BB30s require the maintenance they do, or why the bearings need to be replaced as often as they do.
I rarely see problems with Hollowtech II BBs, but frequently need to replace BB30 bearings or silence a creaky one.
Yeah, I'm not talking about creaking, but rather the bearing life. But since you mention it, why don't cartridge bearings creak in a Hollowtech cup like they do in the BB shell? Is it because the tolerances on the cup are so much tighter than the shell? Or because the cup is more robust and "gives" less than the shell?