Shimano Dura Ace Di2 ST-7970 STI 2x10

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Description of Shimano Dura Ace Di2 ST-7970 STI 2x10

Electronic Dura Ace Di2 Dual Control Levers 2x10 speed with new design and improved ergonomic shape. "Fly by Wire" for easiest operation and a new shifting experience. The new Dual Control Levers show the importance of state-of-the-art technology with regard to performance enhancing design. The lever blades are made of multiple carbon layers, finished with a unidirectional carbon fiber top layer with a special coating. This advanced technology ensures the best performance in terms of rigidity, durability and lightweight design. A better access to the brake lever from the upper side gives smooth braking operation with a closer pivot. This results in better controllabillity for more aggressive riding style under severe conditions. The electronic shifting logic is nearly the same as the Shimano mechanical system. There is no need to rethink - simply press the button.

With a reach adjustment mechanism the Dual Control Levers can be adjusted to the rider in order to better accommodate smaller hands and a wider assortment of bar bends. The hoods have an ergonomic design for increased comfort, even on long distance rides.
The shifters feature integrated buttons on top of the hoods to operate the new wireless FlightDeck computer without the need to take the hands of the handlebar. The Dual Control Levers are mounted on the handlebar with a titanium fixing band and a titanium bolt to reduce weight. An optional satellite switch allows shifting from any position of the handlebar.

Note: In order to ensure proper functioning of the electronic Di2 drive system, all components require the same firmware version. The optional diagnostic device allows for reading out or updating the firmware version. An operation of components with different firmware versions may cause a malfunction or loss of function.

Note: Delivery includes braking cables and housings. Operation additionally requires a wire set EW-7970/5, a wire set SM-EW79 and the battery SM-BTR1.
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Fact Sheet of Shimano Dura Ace Di2 ST-7970 STI 2x10

Product Name: Shimano Dura Ace Di2 ST-7970 STI 2x10
Manufacturer: Shimano Parts
Item Code: SHI108919
Material: carbon, titanium
Weight: approx. 260 gram (set)
Included in delivery: left and right STI, braking cables and housings
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