Splined bottom bracket for use with Shimano Octalink chainsets.

Features
Oversize BB spindle – large 22mm diameter hollow cold forged chrome-moly pipe billet spindle reduces weight, increases strength & 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 & water.
Cartridge design allows easy installation without adjustment.