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    Splined bottom bracket for use with Shimano Octalink chainsets.


    • 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


    Model BB-ES300-E
    Bb Type Octalink
    Structure E-Type
    Material Steel, resin Case
    Width 68mm Shell
    Diameter BSA (BC 1.37)
    Shaft Length 118mm
    Mounting screwed
    Weight 265g
    Size: 68 x 121mm, 73 x 113mm, 73 x 121mm, 73 x 126mm, 68 x 113mm, 68 x 118mm, 68 x 126mm, 73 x 118mm
    *Please note that our specifications may be impacted by running substitution changes, we highly recommend confirming the specifications of our products at the time of sale. *Recommended Retail Prices are subject to change without notice and may vary from store to store depending on freighting and assembly costs. Please read our Terms & Conditions

    *Giant & Liv Bicycles are available for purchase online, but due to warranty regulations, must be shipped to qualified Giant dealers, as bicycles must be assembled by a qualified bike mechanic in an approved store - This is an international policy and usually will require an additional fee to build the bike. This will be confirmed by one of our online staff after purchase of the bike.

    *Specialized Bicycles are available for home delivery nation wide.

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