Shimano Dura-Ace Di2 Electronic External Rear Wiring Kit

Shimano's Dura-Ace Di2 takes shifting to the next level. The Rear Wiring Kit connects to both the left and right shifters and Junction Box A (which displays battery power and allows manual adjusting). It also includes a battery mount, cable ...(Read More)

Shimano Dura-Ace Di2 Electronic External Rear Wiring Kit
The Dura-Ace Di2 Front Wiring Kit (image of Rear Wiring Kit unavailable from manufacturer).
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Items marked as " In Warehouse" normally take two to three days to arrive in the store for you to pick up, but can ship to direct to your house within 24 hours if home delivery is allowed for that item. All bicycles may be delivered to the specific counties adjacent to our stores for $50.00 fee or picked up in our stores.
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Shimano's Dura-Ace Di2 takes shifting to the next level. The Rear Wiring Kit connects to both the left and right shifters and Junction Box A (which displays battery power and allows manual adjusting). It also includes a battery mount, cable covers to route and hide the cables and a wire plug/unplug tool. The External Kit is meant to be run on the outside of the frame.

Measure your frame according to the diagram and calculate X. Choose the wiring kit that’s the same length or longer than X.