To ensure that the signal goes from the shifter to the derailleurs, the reliability of the electric cable has been proven by repeated field tests in various riding conditions, including extreme temperatures, rain, mud, and cobble stone roads
The removal of traditional mechanical cables in favour of electrical wires not only eliminates poor shifting caused by contaminates, corrosion and stretching, but provides effortless gear shifts
Dura-Ace Di2 requires2 cables: a handlebar cable set to connect the shifters to a battery indicator junction box or FlightDeck, and the other to connect the handlebar cable to the battery and derailleurs. This battery to derailleur cable is available for internal or external routing in different lengths allowing for various frame sizes
The handlebar cable set is available in two types: one for use without a FlightDeck computer instead using a simple junction box to display battery life; the other is for use with FlightDeck which can providing information like cadence, gear position, battery indicator, and more
Handlebar cables should not be cut to size or modified in any way
Reliable and secure water resistant connectors