We understand that the gnarly line requires a lot more focus than a lap of the supermarket. Thats why we packed the GX DH 1x X-HORIZONrear 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 DHGet Some.Key Features:The GX 1x X-HORIZONRear Derailleur is an integral part of the SRAM 1xDH drivetrain systemThis is the most affordable full-featured, dedicated 1x DH rear derailleur in the industryX-ACTUATIONfor precise and dependable 7-speed performanceFully compatible with the SRAM X01 DH drivetrainX-HORIZONdesign that reduces shift force, ghost shifting and cage slap12-tooth X-SYNCpulley wheels