Shimano BB-ES300 68 x 121mm Octalink Black Bicycle Bottom Bracket

• 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

Code: BB2756