SRAM RED XPLR AXS Rear Derailleur Cage Assembly Kit - Full Replacement Cage Assembly, E1Full replacement cage assembly including outer and inner cages, damper, and pulleys on SRAM RED XPLR AXS 13 Speed E1 rear derailleur. Kit includes: Carbon inner and outer cages, damper, and pulleys Compatible with SRAM model: RD RED 1E E1 Item Specifications Defined Color Black Drivetrain Speeds 13 Fits Brand SRAM Fits Model RD RED 1E E1 SRAM RED XPLR AXS 13 Speed Rear Derailleur Cage Assembly Kit Cage Assembly UPC: 710845912160