SHIMANO BB-UN300-K Bottom Bracket- 68×117.5mm Spindle Square Taper

The Shimano BB-UN300-K Bottom Bracket is designed to fit JIS square-taper cranksets and features a hollow spindle. This bottom bracket has a spindle size of 68×117.5mm with a square taper design. It is compatible with chain cases and comes with the necessary specifications for easy installation. The BB-UN300-K is a reliable and durable component for your bicycle wheel parts, ensuring smooth and efficient cycling performance.