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Description
Shimano BB-ES300 Octalink Bottom Bracket - 68 x 121mm
- Splined bottom bracket for use with Shimano Octalink chainsets
- Oversize BB spindle - large 22mm diameter hollow
- Octalink splined axle/crank arm interface
- Sealed cartridge assembly with oversize ball bearings
- Maintenance-free high efficiency rubber seals keep out dirt, mud & water
- Cartridge design allows easy installation without adjustment
- Manufactures part number: BB-ES300-K
