The CeramicSpeed BSA Bottom Bracket works with 24mm diameter thru-axle cranks, found on Shimano, FSA, Rotor, among others. Coated Bearings have those same balls installed on coated, hardened-steel races for longer life and less bearing drag.

INCLUDED

2 threaded cups with bearings
2 dust covers with built-in spacers
Spacer tube
All Round Grease
Decal