Developed specifically for SRAM 1X, X-Actuation keeps shifting sharp and consistent across the entire 10- to 42-tooth cassette and ZeroLoss, which simply means, well, zero loss when you push on the lever, for an upshift or down shift, the cable is engaged instantly zero loss of movement. There is no middle-ground where you\'re waiting for the shift to come. Gear changes are instant and precise.SRAM 1X X-Actuation for precise and dependable 11-speed performance,Zero Loss Engagement for fastest shifting,Multi-adjustable trigger shifter,MatchMaker X compatible,Aluminum cover and adjustable forged aluminum pull lever,Includes discrete clamp.