Road    Di2 Wire Kits, Batteries & Accessories

Shimano Dura-Ace Di2 Rear Wire EW-7970

The Dura-Ace Di2 rear wire is one part of the Di2 system including shifters, derailleurs, battery, battery charger, and several cables/wires. The Di2 rear wire kit holds the battery and has a wire that goes to each derailleur and also to Junction box A. Included are the TW-EW01 tool to plug and unplug wires without damage. Also included are cable covers which are an adhesive tape made specifically to route and hide the cables.


  • 107 grams
  • Includes cable cover to route and hide cables
  • Contains battery mount and battery mount hardware
  • Contains tool for plugging and unplugging connections
  • Plugs into each derailleur, battery and Junction Box A
  • Select short for small frames, medium for most frames, and large for very large frames
  • $169.88
    Reg Price $279.95
    Item #: 110557