Shimano Dura-Ace Di2 Electronic External Rear Wiring Kit Bike Accessories_Saddles Redesigned FC for greater frame

Redesigned FC for greater frame compatibility

even on the move

11 spd Rear Derailleur Shimano 105 R7000

aerodynamic and reliable tire construction

but with some key differences

Shimano Dura-Ace Di2 Electronic External Rear Wiring Kit Bike Accessories_Saddles Redesigned FC for greater frameDetails 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