New in retail packaging.

Sram Rear Derailleur NX 1x11 Speed - Black.

Features:

• The SRAM NX X-HORIZON™ rear derailleur provides the same smooth, reliable shifting action as XX.
• 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.