Shimano SM-EW79F-E Wire Kit for Dura Ace Di2 Flight Deck
Wire kit for Shimano's Di2. This wire kit connects both STIs to the Shimano Flight Deck.
This wire kit is equipped with connectors for the left and right STI. One additional port is used to connect to the EW-7970 wire kit, which then connects the battery-pack, front and rear derailleur.