GX DH, Rear Derailleur, Speed: 7, Cage: Medium, Black

* X-ACTUATION™ for precise and dependable 7-speed performance* Fully compatible with the SRAM X01 DH drivetrain* X-HORIZON™ design that reduces shift force, ghost shifting and cage slap* 12-tooth X-SYNC™ pulley wheels* SRAM Model ID: RD-GX-1DH-A3