SRAM GX 1x11 Speed Long Cage Rear Derailleur Black

The SRAM GX X-HORIZON™ rear derailleur is designed for smooth and reliable shifting. Its larger upper pulley offset and 12-tooth X-SYNC™ pulley wheels help eliminate unwanted chain movement. This results in faster shifts, prevents ghost shifting, and reduces both shift force and chain slap. Additionally, the CAGE LOCK™ technology makes wheel removal and installation easier than ever.