Sram Unisex's Nx 1x11 Speed Long Cage Rear Derailleur-Red, Medium

The SRAM NX X-HORIZON™ rear derailleur gives 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.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. - Manufacturers part number: RDP8092000

• Cage Lock - Technology in the rear derailleur makes wheel removal and installation, and chain installation faster and simpler
• Roller Bearing Clutch - Eliminates derailleur bounce and chain slap without sacrificing precision, delivering maximum drivetrain stability
• Lightweight
• Made of durable materials