Sram NX 1x11 Speed Rear Derailleur Long Cage Black

TheSRAM NX 11 Speed Rear Derailleurprovides the same smooth, reliable shifting action as XX1—from the larger upper pulley offset to the 12-tooth X-SYNC™ pulley wheels. By eliminating unwanted chain movement, X-HORIZON™ shifts faster, puts an end to ghost shifting and reduces shift force and chain slap. And with CAGE LOCK™ technology, wheel removal and installation are easier than ever. SRAM NX 11 Speed Rear Derailleur Features X-Horizon design that reduces shift force, ghost shifting and chain slap 12-tooth X-Sync pulley wheels Fully compatible with all SRAM 1x drivetrains Most affordable fully featured 1x rear derailleur in the industry