Shimano Dura-Ace Di2 Electronic External Rear Wiring Kit Swim Brand_KAP7 stellar durability

stellar durability

With advanced muscle support to minimize fatigue and industry-leading aerodynamics and ventilation technologies

Thanks to the added Teflon fluoropolymer

This cold-weather essential uses Polartec Wind Pro fabric on the leading edge to block the wind and highly breathable thermal fabric on the top and back to keep you from overheating

Fizik Alpaca Terra X5

Shimano Dura-Ace Di2 Electronic External Rear Wiring Kit Swim Brand_KAP7 stellar durabilityDetails 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. Most 53 to 59cm frames use a Medium (830mm) Rear Wiring Kit. See our diagram