Sram xx1 eagle trigger shifterhidden beneath your handlebars the xx1 eagle x actuation trigger shifter is the central control system for the sram eagle drivetrain with its enhanced trigger feel and the ability to shift effortlessly across 12 gears on the cassette it is an efficient and joyful experience to use durable precisionthe sram shifters have always offered a direct shifting action from the moment the thumb is pressed to when the chain jumps to the desired sprocket on the cassette eve