Shimano Splined 5500/6500/7700 Bottom Bracket Weight: 250g double, 259g triple. Use with 105 splined Octalink chainset. Available in axle lengths of 109.5mm (double) & 118.5mm (triple).- Splined Bottom Bracket designed for use with Shimano road Octalink crankset- Oversize BB spindle
- large 22 mm diameter chrome-moly hollow pipe billet spindle reduces weight, increases strength & 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 & is easy to install- Aluminium adapter