• Shimano Ultegra Di2 6870 11 Speed Rear Mech

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        • $154.99 - $159.99 154.99 159.99
        • RRP $274.00 - $298.99
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Shimano Ultegra Di2 6870 11 Speed Rear Mech

With Di2 technology shifting is easy and precise - just a light touch, as soft as a mouse click, is sufficient for the front or rear derailleur to instantaneously select the correct gear. Programmed automatic motion at the touch of a switch makes this derailleur quick, smooth and effortless to shift.

The removal of traditional mechanical cables in favour of electrical wires not only eliminates poor shifting caused by contaminates, corrosion and stretching, but provides effortless gear shifts. Derailleur contains a saver (fuse) function, where the inner structure is protected from strong impacts.


  • High tolerance cold forged aluminium link plates and body construction is extremely light and durable
  • Cassette Compatibility: 11-speed
  • Maximum Sprocket: Low - 28T, top 0 12T
  • Minimum Sprocket: Low - 23T, top - 11T
  • Maximum Front Difference: 16T
  • Total Capacity: 33T
  • Weight: 250g

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.

  • Delivery costFREE
  • Delivery toUSA
  • 365 Days return or exchange

    If you're not completely satisfied with an item you may return it within 12 months of purchase. We'll give you a full refund if the item hasn't been used or the component hasn’t been fitted.

    More information on returns
  • Pay by PayPal, Bank Transfer or Card


  • Colour: Grey
  • Size: Medium Cage, Short Cage
  • Speed: 11 Speed

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