Shimano Dura Ace Di2 7970 Frame Cable Set

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 requires 2 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. External cable sets are ideal for upgrading your current bike to Dura-Ace Di2 if it does not feature the Di2 specific internal cable routing.

There are 3 lengths of cables available to suit your frame, these are:
875 (890)mm - for larger frames
790 (830)mm - for medium frames
705 (770)mm - for smaller frames

For details on how to install Shimano's Di2 drivetrain please view their Di2 Installation guide