Shimano ES300 Bottom Bracket | 68x121mm

 Shimano ES300 Bottom Bracket to be used in conjunction with Shimano Octalink Chainsets. The Octalink splined axle/crank arm interface creates a more rigid crank assembly compared to square tapered spindle.

Features
- Smooth and precise shifting performance with Hyperdrive Technology
- Chain Case compatible
- Hollow-Type

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