Sram: RANGE TO REALIZE The challenges of riding a mountain bike should be kept to roots, rocks, mud, trees, jumps, drops and breathing. Putting total control of your gear selection into the thumb of one hand, it’s simple to find the right gear, right now. The GX Eagle™ trigger shifter is the control center of the Eagle™ drivetrain. Its internal works have been updated to include a 12th gear, and improved to enhance trigger feel, precision and durability.THINGS TO REMEMBERE-MTB specific Eagle shifter that limit the pull lever to a single engagement.  Just like we have on our EX1 shifters, this helps eliminate pre-mature chain wear and chain breaking.Eagle™ technology provides an expanded, optimum, gear range making you fast on the flats, giving you control on the climbs and unleashing your speed on the descents.Eagle™ is a complete drivetrain system that was developed to be an integrated high-performance ecosystem. The engineering and testing that went into the development provide for maximum performance, safety, and long-term durability to ensure a great consumer ride experience. We guarantee this performance when Eagle™ drivetrains are used as a complete ecosystem. For additional information, please contact your SRAM Sales Contact.FEATURES AND BENEFITSNew mechanism creates a smoother and more precise shifting system with exceptional reliabilityForged aluminum trigger designed to take a beatingMatchMaker™ X compatible SPECIFICATIONSSpeeds: 12Compat - Derailleur/Hub (SL): RD:12sCable pull ratio: X-actuationColor (SL): BlackCable length (SL): 2200mmShifter type: TriggerMatchmaker compatible: YesClamp included?: YesMax upshifts: 1Pull lever adjust: NoMulti-position: YesGear indication: No