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    • Shimano Ultegra R8050 Di2 11sp Rear Derailleur


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  • Shimano Ultegra R8050 Di2 11sp Rear Derailleur

    Ready to complete your Shimano Ultegra Di2 electronic drivetrain or to replace your component after a crash, the slick-shifting Ultegra Di2 rear derailleur now performs better than ever. By adopting what it has learned from its MTB components, Shimano has incorporated Shadow technology to give this road bike rear derailleur better shift stability. This is thanks to the revised lower profile design and bringing the cage closer to the bike’s frame. An added benefit of this is a sleeker and more integrated look.

    Compact Rear Mech Design

    The optimised slant angle of this Ultegra Di2 R8050 11-Speed Rear Mech guarantees race endurance and is more compact in design. The closer fit to the frame ensures less damage in the event of a spill.


    • Speed: 11-speed
    • Mounting: Standard hanger type mount
    • Compatibility: 11-speed Shimano Di2 road shifters, 11-speed road cassettes
    • Shadow RD Technology
    • Precise and accurate shifting
    • Optimised slant angle
    • Low-profile design
    • Clutch Type: No
    • Manufacturer Reference Codes: Short Cage: RDR8050SS; Medium Cage: RDR8050GS
    • Weight: 242g (Short cage)


    • Shadow RD: Traditional derailleurs extend wider than the profile of your bike. With its low-profile design, Shadow rear derailleurs have a more compact shape that fits closer to the frame, with more direct cable routing. They also maintain a consistent distance to the cassette for increased shift stability. The reduced body width creates a sleek and smooth appearance, ensuring less damage in a crash.
    • Di2: The power and precision of Di2 are unmatched. It enables beautifully smooth shifting both front and rear. The lack of maintenance and adjustment is impressive: once you’ve customised your Di2 to shift to your preferences, it will continue to do so endlessly.

    A 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).

    Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.


    • Colour: Grey
    • Size: Medium Cage, Short Cage
    • Speed: 11 Speed
  • Save Up To 16%
    RRP €285.99 - €291.49
    €242.49 - €243.99 242.49 243.99
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    Medium Cage
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