Shimano Alivio BB-ES25 Bottom Bracket – Black, Size 21

Features

• Splined bottom bracket for use with Shimano Octalink chain sets
• 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

Product Details

• Product Dimensions: 0.07 x 0.02 x 0.02 inches; 0.22 pounds
• Shipping Weight: 0.22 pounds
• ASIN: B0012L8HQU
• Item model number: E-BBES25B21
• Average Customer Review: Customer Reviews

Product Description

A high quality direct replacement Octalink compatible bottom bracket with upgraded Cro-Moly axle for lighter weight and increased strength, oversized ball bearings and rubber seals. Range of size options.   Splined bottom bracket for use with Shimano Octalink chainsets Oversize BB spindle - large 22 mm 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