microSHIFT Acolyte Xpress Right Trigger Shifter - 1x8 Speed BlackmicroSHIFT Acolyte Xpress Right Trigger Shifter 1x8 Speed Black Acolyte Compatible Only. Changing gears is a snap with the Acolyte shifter. Discrete thumb and index levers and a crystal clear gear indicator simplify shifting decisions making each action and reaction easy to understand. And of course it retains the light action and positive indexing that microSHIFT has made its name on. Ergonomic trigger placement Clear and easy to read indicator TECH