The Sram NX Eagle Trigger Shifter means on-demand gear selection throughout the entire wide range Eagle cassette. The massive range means you never have to worry about having the right gear for the terrain.   E-MTB specific Eagle shifter option limiting the pull lever to a single engagement, also compatible with standard MTB.   Specification Shifter Type: Trigger. Clamp: Standard Bar Clamp. Cable Pull Ratio: X-actuation. Inner Cable Length: 2200mm. Speed: 12.