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.Key Features:The GX 1x X-HORIZON™ Rear Derailleur is an integral part of the SRAM 1x™ DH drivetrain system,This is the most affordable full-featured, dedicated 1x DH rear derailleur in the industry,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.