This Shimano Dura Ace Di2 7970 Frame Cable Set is no longer available although you may find similar or newer versions below:
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 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
Good quality gear cables will have a dramatic effect on the feel and function of your drivetrain. Fully sealed systems are particularly good for MTB's used off-road or your winter bike as they prevent the ingress of water and muck, they have the benefit of requiring minimal maintenance, which is always nice. A good quality gear cable will provide a smoother lever feel, along with sharper and more precise shifting.
Shimano are the makers of the world's most well known cycle component brand. Established in 1921 when the first cycle freewheel was forged. Shimano produce drivetrains, wheels, pedals, shoes, cycling clothing and pretty much every Shimano cycle accessory you can think of! Famous for their top end products ridden by the pro's, Dura-Ace and XTR, which cover both road and MTB's. At Shimano, they're doing everything they can to respond to heightened environmental concerns. Shimano are proud to be a producer of bicycle components that help people to enjoy outdoor sports and interact with nature through healthy non-polluting activities. In their 87 plus years of existence Shimano have accumulated a wealth of technology and product development and expertise that serves as the driving force behind their continually evolving product line.
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Executive Director: Stefan Barden.