Road cycling has never been so much fun. The reason for this is the new ULTEGRA ST-R8170 DUAL CONTROL shift/brake levers with their optimized ergonomics, even more precise brake modulation, and wireless electronic shifting function. Thanks to these three improvements, road cyclists can now fully focus on the next sprint, the next descent, or the next joke from a fellow rider. The new ULTEGRA ST-R8170 brake lever provides improved modulation and control on every ride, thanks to the proven SERVO WAVE technology from SHIMANO. The brand new Di2 platform is used in DURA-ACE and ULTEGRA, where it enables the fastest and most reliable wireless shifting in the world. Time in the saddle is valuable for every rider, and with SHIMANO, it becomes even better.