Experience precise and effortless shifting with the Shimano ST-R8170 Ultegra Di2 Shift Lever, designed for 2x12-speed drivetrains. Weighing just 360 grams, this shift lever offers a lightweight yet durable construction for optimal performance on the road. The ergonomic design ensures comfortable and intuitive operation, enhancing your overall riding experience. With customizable shift button functions, you can tailor the lever to suit your preferences and riding style. The Shimano ST-R8170 Ultegra Di2 Shift Lever features advanced Di2 technology, providing smooth and reliable shifting every time. Whether you're tackling challenging climbs or sprinting towards the finish line, this shift lever delivers precision and efficiency to elevate your cycling performance. Upgrade your ride with the Shimano ST-R8170 Ultegra Di2 Shift Lever and enjoy seamless gear changes on your next adventure.