Shimano Ultegra Di2 R8170 Groupset 11-34T

The Shimano Ultegra Di2 R8170 groupset sets a new standard in the world of road bike components by making the revolutionary technology of the Dura-Ace line accessible to a wider audience. This 12-speed groupset combines a semi-wireless platform with lightning-fast electronic shifting performance, resulting in a clean cockpit without unnecessary cabling. The shifters communicate wirelessly with the rear derailleur, while a single internal battery powers the derailleurs for reliable and long-lasting performance. With the included 11-34T cassette, you are assured of a wide range, ideal for both fast flat rides and the steepest mountain passes, without sacrificing the small steps between gears.

What truly sets this groupset apart is the integration of Hyperglide+ technology, originally developed for mountain biking. This system ensures smooth and direct shifting, even under heavy pedaling pressure during a sprint or climb. Additionally, the completely redesigned braking system with Servo Wave technology offers unparalleled modulation and control. The brake pads engage faster and provide more space between the pad and rotor, drastically reducing the chance of rubbing and noise. This gives you the confidence to brake later and harder in technical corners or descents.

In addition to pure performance, much attention has been paid to ergonomics and ease of use. The new Di2 shifters have an optimized shape that fits more comfortably in the hand and offers more control, regardless of your hand position. Through the Shimano E-TUBE Project app, you can fully personalize the shifting settings, such as shifting speed and button functions. Since the system is partly wireless, installation on your frame is easier and your bike looks more streamlined than ever before.