Sram X01 Rear Trigger Shifter with Discrete Clamp Black - 11 SpeedSram X01 Rear Trigger Shifter with Discrete Clamp Black 11 Speed The Sram X01 Trigger Shifter 11 Speed Rear with Discrete Clamp is a truly outstanding shifter, using the latest in SRAM technology your shifts will be much quicker, precise and reliable. The Sram X01 Trigger Shifter uses the Zero loss Engagement, which essentially means that when you push on the lever, up or down shift, the cable is engaged instantly meaning that you will gain full