- Precision machined threaded aluminum cups - Compatible with all bikes adhering to Italian Standard bottom bracket shells - Right hand threaded for both shells, 36mm x 24 tpi - Includes sleeve to fit between cups for added protection from dirt and grime, and also keeps your internal wires and hoses from rubbing on the crank spindle - Bearings are easily serviced or replaced - Base: Enduro ABEC 3 sealed bearings
