Installation is just as easy

Signal whistle

8mm and 35mm clamping diameter

Swappable cleats giving 15° or 20° release angle

All of this is wrapped in a durable synthetic skin

SRAM GX 11 Speed Rear Derailleur - 11 Speed PDP|Option Installation is just as easyTHE NEXT GENERATION OF SRAM Leveraging the legendary history of SRAM shifting, the GX rear derailleur provides incredible shifting speed and precision. X ACTUATION technology eliminates slop and shifting variation. ROLLER BEARING CLUTCH technology delivers maximum drivetrain stability even through the most punishing terrain. And with CAGE LOCK technology, wheel removal and installation are easier than ever. Specifications for GX 1x11 X HORIZON Rear