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Shimano
Ultegra Di2 FD-6870 Front Derailleur

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Ultegra Di2 FD-6870 Front Derailleur

The Ultegra Di2 FD-6870 Front Derailleur features a self-trimming function, which basically means that the internal CPU knows what gear your bike is in and thus where your front derailleur needs to be in relation to the chain. This works in conjunction with the "programmed motion" of the derailleur. Once the high and low limits are set, it moves onto the big or small chainring, and then re-centers itself. Once and for all you are rid of chain rub on the cage plates. Additionally, the 6870 shifts quieter than the previous 6770.


Although the Di2 system still has an unmistakable "electronic" look, the profile of the 6870 is more slender than the previous 6770 and offers a more streamlined appearance. As electronic components are continuously refined, we expect this trend to continue.


The Shimano Ultegra Di2 FD-6870 Front Derailleur comes in Braze-On, 31.8mm, and 34.9mm configurations. It's designed to work with both standard and compact gearing for double-chainring cranksets. The wire kits and other associated electronic components are sold separately.


Details

  • E-Tube compatible for programmability
  • Compatible with both standard and compact chainrings
  • Wires sold separately
  • Item #SHI0658
Material
[body] aluminum, [cage] aluminum
Mount
braze-on
Claimed Weight
155 g
Recommended Use
cycling
Manufacturer Warranty
2 years

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