SRAM Eagle Rear Derailleur Pulley Kit Description: The SRAM Eagle Rear Derailleur Pulley Kit contains the parts needed to replace damaged or worn-out upper and lower pulleys on SRAM Eagle Mechanical Rear Derailleurs, restoring functionality and performance. Specifications: Model Compatibility: Eagle GX Mechanical Rear Derailleur | Eagle X0 Mechanical Rear Derailleur | Eagle XX Mechanical Rear Derailleur | S500/S200 Mechanical Rear Derailleur Color: Black Each Kit Includes: (1) 12t Upper Pulley with bearing (1) 14t Lower Pulley with bearing (1) 13mm Steel Pulley Bolt (1) 14mm Steel Pulley Bolt (4) Shims