The ULTEGRA ST-R8170 2x12 speed Dual Control levers with Wireless Di2 connectivity deliver a clean aesthetic and simple setup while reimagined ergonomics bring a new level of comfort and control.
GX Eagle Transmission is ready to go toe to toe with anything, perfect shifting that’s unapologetically robust. It’s simply the most dependable drivetrain we’ve ever created, built to hold its own on any trail and outlast the rest...
It’s simple. It’s about performance. The pure shifting performance of Eagle AXS™ is the real difference maker. Shift under load, over the roughest terrain, uphill, without changing your grip on the bar.
The Eagle AXS derailleur is the brain of the whole AXS system
Shorter cage for 10mm more ground clearance, with more chain wrap on the cassette to sit slightly further forward, and further inboard from mechanical Eagle
Battery not included
