SRAM Rear Derailleur GX 1X11-Speed Long Cage RedThe SRAM GX X-HORIZONâ„¢ rear derailleur is engineered for smooth, reliable shifting action-from the larger upper pulley offset to the 12-tooth X-SYNCâ„¢ pulley wheels. By eliminating unwanted chain movement, X-HORIZONâ„¢ shifts faster, puts an end to ghost shifting and reduces shift force and chain slap. And with CAGE LOCKâ„¢ technology, wheel removal and installation are easier than ever
X-HORIZONâ„¢ design reduces shift force, ghost shifting and cage slap
12-tooth X-SYNCâ„¢ pulley wheels
Large upper pulley offset automatically adjusts chain gap