JRC Components 11T Ceramic Pulley Wheels | Compatible with Shimano Dura Ace R9250 | Hybrid Ceramic Derailleur Pulley Wheel Suitable with Shimano 12 Speed | Rear Derailleur Pulley Wheels - Gunmetal

Upgrade your drivetrain performance with JRC Components 11T Hybrid Ceramic Pulley Wheels for Shimano 12 Speed Road Systems. Crafted from CNC machined 7075-T6 aluminum, these wheels outshine standard Delrin options in both durability and aesthetics. Benefit from reduced friction and seamless integration with our ceramic pulley wheels, crafted using advanced materials and design.Features:- Premium Materials: Constructed from CNC machined 7075-T6 aluminium for lightweight durability, complemented by hybrid ceramic bearings for reduced friction and increased efficiency.- Enhanced Performance: Sealed hybrid ceramic bearings ensure smoother operation and longer life, minimising maintenance needs and boosting ride quality. Packed with grease for flawless year-round performance.- Precision Shifting: Smooth and accurate shifting under all conditions due to the superior precision of the rigid aluminium body.- Lightweight, Robust Design: Each jockey wheel set weighs only 18 grams yet is durably c