Shimano BB-ES300 Octalink Bottom BracketSplined 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
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product description
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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