Shimano BB-UN300-K Bottom Bracket - English 68 x 117.5mm Spindle Square Taper JIS For Chain Case

Upgrade your bike’s performance with the Shimano BB-UN300-K Bottom Bracket, engineered for durability and smooth operation. Designed to fit English 68 x 117.5mm shells, this bottom bracket features a reliable square taper JIS spindle compatible with a wide range of cranksets, ensuring seamless integration with your setup.

• Precision-fit for JIS square-taper cranksets, guaranteeing optimal power transfer
• Hollow spindle design reduces weight without compromising strength
• Crankarm fixing bolts sold separately for customization flexibility

Experience enhanced pedaling efficiency and long-lasting performance with Shimano’s trusted quality components, ideal for both casual riders and dedicated cyclists seeking dependable upgrades.