SRAM

Eagle Ceramic Pulley Wheel Assemble Kit

Over time derailleur pulleys tend to wear out, even if the derailleur itself is undamaged. Either the bearings go bad, the pulley teeth wear out, or maybe both. If your bearings are feeling gritty, or the pulley teeth have rounded out, it's in your best interest to replace the pulley wheels to get the best shifting performance out of your drivetrain. These are genuine SRAM replacement pulley wheels for Eagle 12-speed mountain rear derailleurs, with sealed ceramic bearings included. Ceramic bearings spin with less friction that their steel counterparts, minimizing the power lost to your drivetrain. They also shed some weight and tend to last longer.