START WITH ONE
The SRAM NX X-HORIZON™ rear derailleur provides 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.
FEATURES AND BENEFITS
• X-HORIZON™ design that reduces shift force, ghost shifting and chain slap 
• Most affordable fully featured 1x rear derailleur in the industry
• 12-tooth X-SYNC™ pulley wheels
• Fully compatible with all SRAM 1x™ drivetrains
SPECIFICATIONS
Speed (RD): 11s
Cable pull ratio: X-actuation
Cage (RD): Long
Max tooth: 42
Colour (RD): Black
Pulley bearings material: Steel
Cage material (RD): Steel