features two precision sealed bottom bracket bearings, machined 6061-T6 aluminum cone spacers with integrated Shadow Crow logo, aluminum internal spacer and several smaller crank arm spacers to help dial-in chain alignment. Only ...

sealed Mid bearings, a drive and non-drive side aluminum dust cap, an internal tube spacer, and several external spacers to use as needed to dial in your specific set up.

precision sealed bearings, 2 threaded aluminum cups to house those bearings, an internal spacer, and several spacers to dial in your bottom bracket alignment. Theory offers these threaded euro BB kits for ...

will get those cranks spinning smooth again with durable sealed cartridge bearings. Each dust cap features a repeating Federal logo to keep things looking clean.

precision sealed bearings, press-in American BB cups, internal spacer, drive and non-drive side dust caps, and several spacers to work with.