Oversize BB spindle - large 22 mm diameter hollow 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 - maintenance-free sealed cartridge keeps out dirt, mud and water
Buy Shimano ES30 Octalink Bottom Bracket from Chain Reaction Cycles, the world's largest online bicycle store.
If you're not completely satisfied with an item you may return it within 12 months of purchase. We'll give you a full refund if the item hasn't been used or fitted.More information on returns