Shimano Ultegra 8000 GS Shadow rear derailleur

Rear derailleur. The new Ultegra rear derailleur features Shimano’s Shadow RD design, which gives the derailleur a lower profile and more stable operation.
Everything you need to make your ride distinctively yours: The Shimano Ultegra 2x11-speed Rear Derailleur RD-R8000 SS
The new Ultegra R8000 series is taking our rider-tuned philosophy to the next level, with an extensive range of components for mechanical shifting, electronic shifting (Di2) and time trial / triathlon.

The RD-R8000 rear derailleur creates a reduction in shifting effort at the lever, at the same time remaining sure, quick and precise. Due to the integrated Shadow RD Technology with its race-proven, low profile design, the derailleur is more compact and fits closer to the frame, ensuring less damage in a crash.