5DEV Titanium Pulley Wheels The Best Pulley Wheels Pulley wheels on your rear derailleur play an important role in keeping your chain moving smoothly through your drivetrain. These can wear out with regular use. The 5DEV Titanium Pulley Wheels are made from CNC'd titanium and are made in San Diego, California. They have Enduro Ceramic bearings that are buttery smooth and the pulley wheels are compatible with SRAM Transmission, AXS and Eagle, and Shimano XTR/XT. Features Material: CNC Titanium Compatible with SRAM Transmission, AXS and Eagle, and Shimano XTR/XTEnduro Ceramic bearings that are buttery smooth | 5Dev | Pulley Wheel Sram Transmission