Sram: RIDE. RINSE. REPEAT. We understand that the gnarly line requires a lot more focus than a lap of the supermarket. That’s why we packed the GX DH 1x X-HORIZON™ rear derailleur with World Championship-winning features, and gave it a price tag that speaks more to the Wednesday Night Championships. This is a DH derailleur that is easier to shift, is incredibly precise and keeps the unwanted noise of chain slap to a minimum, so you can concentrate on the sweet feeling of nailing your line. GX DH — Get Some.THINGS TO REMEMBERThe GX 1x X-HORIZON™ Rear Derailleur is an integral part of the SRAM 1x™ DH drivetrain systemThis is the most affordable full-featured, dedicated 1x DH rear derailleur in the industryFEATURES AND BENEFITSX-ACTUATION™ for precise and dependable 7-speed performanceFully compatible with the SRAM X01 DH drivetrainX-HORIZON™ design that reduces shift force, ghost shifting and cage slap12-tooth X-SYNC™ pulley wheels SPECIFICATIONSSpeed (RD): 7sCable pull ratio: Exact actuationCage (RD): MediumMax tooth: 28Color (RD): BlackPulley bearings material: SteelCage material (RD): Aluminum