Shimano Ultegra Shimano ST-6770 Ultegra Di2 10-speed road STI

With Di2 technology shifting is easy and precise - just a light touch as soft as a mouse click is su

Shimano Ultegra Shimano ST-6770 Ultegra Di2 10-speed road STI

With Di2 technology shifting is easy and precise - just a light touch as soft as a mouse click is sufficient for the front or rear derailleur to instantaneously select the correct gear The removal of traditional mechanical cables in favour of electrical wires eliminates poor shifting caused by contaminates corrosion and stretching and also provides effortless gear shifts Simply pressing tactile buttons allows effortless and comfortable shifting even when your hands are cold Buttons are

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