MAHLE Smartbike Systems e-Shifter Remote - Pair, 970mm Wire, Splitter WireThe MAHLE eShifter allows riders to better and seamlessly control their bike, including two small control buttons, vibration technology, and flexible placement of the included silicon bands. Suitable for flat and drop handlebars. Compatible with X20 X30 Systems. Also compatible with the X35 system when using the One Remote C Plus Discrete buttons connected to the HEAD Unit that can control 1 or 2 operations assist level, lights and more (4 operations