Ceramicspeed OSPW RS Alpha Shimano 9250/815 jockey wheel system

Unlock peak drivetrain performance with the CERAMICSPEED OSPW RS Alpha for Shimano 9250/8150. This advanced system features oversized 13/19-tooth pulleys for reduced friction and watt savings. The aerodynamic Alpha disc design enhances efficiency and aesthetics. CeramicSpeed bearings and Active Debris Remover ensure exceptional durability and longevity. Enjoy smoother shifting, improved power transfer, and a competitive edge. Direct replacement for Shimano 12-speed Dura-Ace 9250 and Ultegra 8150 rear derailleurs