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Shimano Ultegra 11-Speed Di2 Rear Derailleur
  • Model: Short Cage
  • Model: Mid Cage

Shimano Ultegra 11-Speed Di2 Rear Derailleur

Model # (RD-6870)
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$259.99 - $279.99
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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 Store SKU
    Short Cage 00689228930544 IRD6870SS REA32805716S
    Mid Cage 00689228930551 IRD6870GS REA32761719S
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Chain Reaction Bicycles is your local bicycle shop for the San Francisco Bay Area! Unlike some other shops, we are dedicated 100% to serving the needs of local cyclists; our offerings are exclusively available for in-store pickup. Our "northern" store is located at 1451 El Camino Real, Redwood City CA, 94063. 650 366 7130. Our "southern" store is located in Foothill Crossing Shopping Center, 2310 Homestead, Los Altos CA, 94024. 408 735 8735. Our hours and directions to our stores may be found here. We look forward to taking care of all of your cycling needs, including service! Mike & Steve Jacoubowsky, Partners, Chain Reaction Bicycles. Serving you since 1980!