Shimano Ultegra RD-R8150 Derailleur Pulley Set (Black) Width->45c the spacer kit provides a

the spacer kit provides a simple solution for achieving a smooth

Shimano® 12-speed XTR®

Flexible and stretchable for easy DIY replacement without tools

Elite Square

improved alertness

Shimano Ultegra RD-R8150 Derailleur Pulley Set (Black) Width->45c the spacer kit provides aThe Shimano Ultegra RD R8150 Pulley Set is a genuine replacement component designed to restore the crisp and efficient performance of your Ultegra Di2 rear derailleur. Built with precision engineered sealed bearings, it ensures smooth chain movement, reduced friction, and consistent shifting under all riding conditions. Features Original equipment quality for perfect compatibility and performance Designed specifically for Ultegra RD R8150 rear