Shimano ST-7971 Dura-Ace Di2 10-speed TT and Triathlon STI levers - double

Features:

• The most advanced level of shifting technology: at the touch of a switch Dura-Ace Di2 is quick shifting, smooth, and effortless
• 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
• Shift switches are located in anergonomic easy to reach position on the side of the aero brake lever
• This switch positioning now gives the added advantage of being able to quickly shift while braking into corners and accelerating out previously not possible on a TT set up
• Brake levers are lightweight thanks to aero carbon fibre lever blades, carbon composite bracket body, and alloy fixings
• Brake lever pivot is positioned to increase power in combination with BR-7900 brake callipers
• The Di2 STIs are also compatible with the FlightDeck computer (SC-7900), measuring important data such as heart rate, altitude, cadence, gear position, battery indicator, and more
• Levers are supplied without electrical cables, as these need to be ordered separately to suit

Shimano ST-7971 Dura-Ace Di2 10-speed TT and Triathlon STI levers - double