Originally Posted by rustymongrel

Not true, outboard bottom brackets for 30mm cranksets use 6806 (30x42x7) bearings just like BB30/PF30. 24mm outboard BBs use 6805 25x37x7 or a close variation (25x37x6 or 24x37x7). All of those bearings use the exact same size balls inside the cartridges.