The Shimano ES25 Octalink V2 Spline Bottom Bracket is a 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 r
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