Shimano - BB-ES300 bottom bracket Octalink

Shimano - BB-ES300 bottom bracket  Octalink
£22.99
Splined bottom bracket for use with Shimano Octalink chainsets
Oversize BB spindle - large 22 mm diameter hollow cold forged chrome-moly pipe billet spindle reduces weight, increases strength and rigidity
Octalink splined axle/crank arm interface - results in more rigid crank assembly compared to square tapered spindle
Sealed cartridge assembly with oversize ball bearings - maintenance-free high efficiency rubber seals keep out dirt, mud, and water
Cartridge design allows easy installation without adjustment