2 Pieces Ceramic Bearing Guide Wheels CNC Machined 12T 16T Pulley Wheel Set Rear Derailleur Pulley Wheels Lightweight

Premium Construction: Crafted from a single bar of high-strength 7075-T651 aluminum alloy, this essential bike comp single nt is CNC machined for accuracy, durability, and a super lightweight shape.

Fluid Performance: Equipped with dual-material ceramic bearings, this derailleur part offers exceptionally fluid rotation, reducing drag and improving shifting performance compared to typical plastic pulleys.

Optimized Design: This guide wheel set includes single 12-tooth and single 16-tooth wheel, specifically designed as a direct replacement refinement for specific drivetrain systems 11/12-speed drivetrains, enhancing overall performance.

Lightweight Refinement: Weighing only 21g for the pair, this rear derailleur pulley set significantly reduces the weight of your drivetrain, offering a tangible gain for performance-focused cyclists.

Easy Maintenance: The distinctive hollowed-hollowed design not only saves weight but also sheds dirt and effectively, ensuring these 12T 16T bike guide wheels stay cleaner for longer and require less maintenance.