Tucked neatly beneath your handlebars, the X01 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 4 stages into the race or days away from civilization, the X01 Eagle(TM) trigger shifter is your faithful 1x touch point. New mechanism creates a smoother and more precise shifting system with exceptional reliability Forged aluminum trigger designed to take a beating Customizable setup via the adjustable pull-lever and MatchMaker(TM) X SPECIFICATIONS SPEEDS - 12-speed rear COMPATIBILITY - Eagle(TM) 12-speed rear derailleurs RECOMMENDED GROUP - X01 Eagle(TM) / XX1 Eagle(TM) TECHNOLOGY HIGHLIGHTS - X-ACTUATION(TM), ZERO LOSS(TM), MatchMaker(TM) X Integrated FINISH - Anodize MATERIAL - Forged aluminum BOLTS - Stainless steel ADJUSTMENTS - Adjustable forged pull lever, MMX(TM) adjustment options COLORS - Black, Red OTHER - Max upshifts 5 , Multi Position, Pull lever adjust HARDWARE - MatchMaker(TM) X