Thread: Di2 advice
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Old 01-19-15, 03:08 AM
  #6  
trailflow1
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The EW67A-E was introduced with the old Ultegra 6770 10 speed Di2. There are reports it is fully compatible with 6870.

It is confirmed working on this link. if you click Q&A then 'Is this cabling set compatible with Ultegra 6870 Di2?'
Wiggle | Shimano Ultegra Di2 6770 Handlebar Cable Set | Gear Cables

The EW90-A and B are the newest ,designed to work with Ultega 6870 an Dura Ace 9070.
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