
Looking for a basic alternative to all the expensive bottom bracket that are out there, we have these 7075alloy cnc machined Bottom bracket units but want ceramic Bearings as well
Tooth pattern:BC 137-24T- BSA thread
Bearing:Ceramic
For any Crank sets with 24mm axle
Comes matching reducing ring, compatible with 22-24mm
Including in box 3 alloy spacer washers