Shimano 105 5500 Octalink Bottom Bracket

Shimano 105 5500 Octalink Bottom Bracket Splined bottom bracket designed for use with Shimano road Octalink crankset. Oversize BB spindle - large 22mm diameter chrome-moly hollow pipe billet spindle reduces weight, increases strength and rigidity. Octalink splined axle/crank arm interface - results in a more rigid crank assembly compared to square tapered spindle Maintenance-free sealed cartridge design prevents corrosion and is easy to install Aluminium adapter Average weight: 250g Bottom Bracket Type: BSA Threaded Bottom Bracket: Shimano Octalink