The most advanced trigger shifter ever developed! The 1st Zero Loss trigger shifter to offer an adjustable pull lever and clamp position. Zero Loss Traveltm 2step Front Shifting uses cable to cradle to equalize overall effort Carbon and Brushed CNC'd Aluminum Chassis Superior 11 Actuation Ratiotm Adjustable Lever and Clamp Positions Avid Matchmakertm Compatible Compatibility SRAM 11r rear derailleurs, SRAM or Shimanor front derailleurs Speeds 9 W