Shimano BB-ES300 Bottom Bracket 68 – 113mm For Bottom Bracket Mount Front Derailleur
$11.19
$13.54
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
