Shimano Ultegra R8170 Di2 2x12V Left Shifter

The Shimano Ultegra R8170 Di2 2x12V left shifter provides improved modulation and control on every ride thanks to Shimano's proven SERVO WAVE technology. The new Di2 platform, used on both DURA-ACE and ULTEGRA, frees up shifting while offering its fastest and most reliable wireless shifting. Your time on the bike is precious, let Shimano make it even better. They have completely new ergonomics, with even more precise brake modulation and wireless electronic shifting. This trifecta allows you to concentrate on the next sprint, the next descent or the words of your teammates.Features:Use: RoadUncluttered display panel: the wireless connection improves the aerodynamic effect and allows for easy maintenance.