SRAM\'s EX1 Trigger Shifter is equipped with SRAM technology to shift precisely, efficiently and witg maximum speed, delivering accurate shifts one at a time.SRAM\'s EX1 Trigger Shifter is specifically tuned for use with E-MTB bikes power assisted drivetrains, and as it’s equipped with SRAM\'S X-Actuation technology, shifts are precise, fast, and efficient. It\'s also specifically tuned to deliver one accurate shift at a time, so you avoid over shifting to the wrong gear, thus extending your E-MTB\'s battery life and decreasing component wear and tear.Key Features:Recommended Group: SRAM Red eTap,Speed: 8-Speed,Recommended group: SRAM EX1,Tuned for Single shifts only,Technology Highlights: X-Actuation, MatchMaker X.