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Shimano BB-ES51 bottom bracket 73 - 113 mm

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  • Detail
    • Splined bottom bracket for use with Shimano Octalink chainsets
    • Oversize BB spindle - large 22 mm diameter hollow pipe billet spindle reduces weight, increases strength and rigidity
    • Octalink splined axle/crankarm interface -results in more rigid crank assembly compared to square tapered spindle
    • ES51 has anti-corrosion treatment inside hollow spindle
    • Sealed cartridge assembly - maintenance-free sealed cartridge keeps out dirt, mud and water
    • Cartridge design allows easy installation without adjustment
    • Aluminium adapter
    • Average weight 262 grams
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