BBB BottomThread BBO-31 Road Bottom Bracket
Description of BBB BottomThread BBO-31 Road Bottom Bracket - BSA-68-24
The BBO-31 is an oversized cartridge road bottom bracket with die casting alloy and CNC machined external cups. Composite center sleeve with double o-ring seals. BSA 1,37"x24T threading. Fits 24 mm axles and frames with 68 mm case width.