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> Bicycling Catalog > Parts > Derailleurs > Rear > Shimano > Ultegra 11-Speed Di2 Rear Derailleur
Shimano Ultegra 11-Speed Di2 Rear Derailleur
  • Model: Short Cage
  • Model: Mid Cage

Shimano Ultegra 11-Speed Di2 Rear Derailleur

Model # (RD-6870)
Product Rating
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$244.99 - $249.99
  • This is not an item we ship, but it can be purchased online and picked up at your convenience. For more information, please get in touch.

Product Details

Shimano Ultegra 11-Speed Di2 Rear Derailleur

Shimano's electric-shifting 11-speed Ultegra Di2 Rear Derailleur is driven by battery power and a servo motor, so shifts are fast, precise, and perfect every time. It's made of light, tough cold-forged aluminum while mid-cage and short-cage models give you your choice of cassette. Since there aren't any cables or housing to stretch or fail, maintenance is dramatically reduced and shifting accuracy is unprecedented. This high-tech derailleur is even designed to move inward under impact to reduce the potential for damage in a crash.

Features and Information

  • Chain-wrap capacity: 33 teeth
  • Largest cog: 28/32 tooth (short cage/mid cage)
  • 250/260 grams (short cage/mid cage)
  • For use with Shimano Di2 road drivetrains
  • Part Numbers close open

    Option Barcode Manufacturer's Part Number Vendor Number
    Mid Cage 00689228930551 IRD6870GS QBP-RD6780
    Short Cage 00689228930544 IRD6870SS QBP-RD6781
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