Bottom Bracket ES300 BS Gravel & Adventure Bikes ensuring secure fitment and proper

ensuring secure fitment and proper alignment of your wheel in frames or forks designed around 12 mm thru-axles

Padlock connectors provide system interconnectivity with 661 protective jackets

making setup and breakdown faster — whether you’re hauling gear for commuters

Weight: 252 grams (size 39)

allowing for versatile gearing setups to suit any trail

Bottom Bracket ES300 BS Gravel & Adventure Bikes ensuring secure fitment and properSplined 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