Shimano BB-UN300 Bottom Bracket - English 68 x 115mm Spindle Square Taper JIS

Experience reliable performance with the Shimano BB-UN300 Bottom Bracket, designed for compatibility with English 68 x 115mm Spindle Square Taper JIS cranksets. This bottom bracket ensures smooth pedaling and durability for your bike, making it an essential upgrade for riders seeking consistent power transfer.

• Compatible with JIS square-taper cranksets, offering a secure and precise fit
• Note: Crankarm fixing bolts are sold separately for customizable installation
• Features a hollow spindle to reduce weight without compromising strength