Tucked neatly beneath your handlebars, the XX1 Eagle(TM) X-ACTUATION(TM) trigger shifter is the nerve center of the Eagle(TM) drivetrain. Its internal works have been updated to include a 12th gear, and improved to enhance trigger feel, precision and durability. Whether you&&';;re 3 laps into your race or 150 days into your season, the XX1 Eagle(TM) trigger shifter is your faithful 1x touch point. New mechanism creates a smoother and more precise shifting system with exceptional reliability Carbon trigger and cover reduce weight Customizable setup via the adjustable pull-lever and MatchMaker(TM) X SPECIFICATIONS SPEEDS - 12-speed rear COMPATIBILITY - Eagle(TM) 12-speed rear derailleurs TECHNOLOGY HIGHLIGHTS - X-ACTUATION(TM), ZERO LOSS(TM), Matchmaker(TM) X Integrated FINISH - Anodized aluminum MATERIAL - Aluminum and carbon fiber BOLTS - Titanium ADJUSTMENTS - Adjustable carbon pull level COLORS - Black, Gold GEAR INDICATION - No OTHER - Max upshifts 5 , Multi Position, Pull lever adjust HARDWARE - MatchMaker(TM) X