Shimano Dura-Ace Di2 EW-7970 Rear Wire Kit

The Shimano Dura-Ace Di2 EW-7970 rear wire kit connects the battery to the front and rear derailleur and the front wire kit (all sold separately). Centrally located is the battery mount which has a strip that mounts under the down tube bottle cage and sits directly below it so you can still have a bottle cage and the battery has a low center of gravity. The derailleur wires then pass through a mount on the bottom of the bottom bracket shell and to the derailleurs. Another wire runs up the down tube to the front wire kit connected to the brake housing just in front of the stem and handlebar. Wire slack is taken up by wrapping it in different configurations around the mount on the bottom bracket shell. The medium length wire kit should fit the most common frame sizes. The kit length is based on the junction wire that extends from the bottom bracket shell to the front wire kit on the brake cable housing just below the stem and handlebar clamp area. The kit also includes adhesive cable covers, two M5 bolts for bottom bracket mount (10.5mm and 15mm lengths), and connector removal tool.