SRAM XX/XX SL Eagle T-Type AXS Rear Derailleur Set Up Key / Cage Lock Assembly Kit - Includes Springs

SRAM Eagle T-Type Rear Derailleur Setup Key / Cage Lock Assembly KitCompatible with SRAM RD-GX-E-B1, RD-X0-E-B1, RD-XX-E-B1, RD-XX-SLE-B1 Rear Derailleurs