The T47a (asymmetric) threaded BB cups are suitable for T47a frames and GXP-compatible cranks with a 22mm/24mm spindle. These cups have internal bearings and are compatible with BB shells with a width of 77.5-79mm. They fit directly into Cervelo, Factor, and Felt T47a BB shells. The bearings are easy to maintain or replace. In addition, a boot is included that you can place between the cups for extra protection from dirt and grime, and to prevent the internal threads and hoses from rubbing on the crank axle.

• T47 external cup on the drive side
• T47 internal cup on the non-drive side
• Compatibility:
• Cervelo T47a with 79mm shell width
• Factor T47a with 77.5mm scale width
• Felt T47a with 77mm scale width