Ceramicspeed OSPW RS Alpha Shimano 9250/8150 jockey wheel system

Upgrade your Shimano 9250/8150 12-speed with the CERAMICSPEED OSPW RS Alpha system for unparalleled drivetrain efficiency. This spare transmission part features oversized pulleys and advanced ceramic bearings, drastically reducing friction for more power transfer and a smoother ride. The unique Alpha disc design enhances aerodynamics and minimizes noise. Experience crisp shifting and exceptional durability for race-ready performance