Shimano Octalink Bottom Bracket

ES25 Splined bottom bracket for use with Shimano Octalink chainsets.

68mm x 113mm

British thread 1.37x24T

Shimano ES25 Bottom Bracket Octalink Features: Oversize BB spindle - large 22mm 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

Shell Width  68mm

Axle length 113mm

BRITISH THREAD.. BC1.37x24