SRAM GX-E Single-Shift Trigger Shifter 11-Speed Rear Discrete Clamp BlackSRAM GX E Single Shift Trigger Shifter 11 Speed Rear Discrete Clamp Black. Get sharp dependable single shift gear changes with the SRAM GX e X ACTUATION trigger shifter. Built for precise shifting across SRAMs wide range 11 speed cassette the GX e trigger shifter brings SRAM 1x technology to everyone. SRAM 1x X ACTUATION for precise and dependable shifts Single shift gear changes with 11 speed performance MatchMaker X compatible with discrete clamp