If you use a 1 x (10/11/12) drive, the ergonomically and quickly operable "Triggy" made of high-quality aluminium can replace your original control lever for hydraulically lowerable seat posts. This will be mounted elegantly and easily accessible instead of the 2/3-speed shift lever on the left side of the handlebar.
Basically, this operating lever works under the following conditions
The shift cable is guided from the front through the lever and clamped to the seat post by means of a cable clamp. Maximum distance of the cable pull 12,5mm. The operating lever is mounted to the handlebar using a SRAM Matchmaker or Shimano I-Spec adapter or a standard SRAM or Reverse Components Trigger clamp.