bottom bracket bearings in your choice of 19 or 22mm, a 44mm long internal spacer, 3 individual crank arm spacers to dial in your chain alignment, and two 6061 aluminum cone spacers ...

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 ...

complete BB kit that has 2 sealed bearings, internal spacer, 2 cone spacers and several smaller crank arm spacers for fine tuning chain alignment. The cone spacers have a 6061 aluminum base ...

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.

includes all of the parts to replace a worn out BB. The kit includes: 2 Mid size precision sealed bearings, 1 aluminum internal spacer (51mm), 2 aluminum cone spacers with laser-etched Rant logos, ...