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ST-R9170 Dura-Ace hydraulic Di2 STI for drop bar

£303.99

In Stock

Description

  • Top of the range, high-performance Dura-Ace hydraulic disc brake Di2 STI's give you control, modulation and power with minimal effort in all riding conditions
  • 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 favor 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
  • Shifters are lightweight thanks to carbon fibre lever blades, carbon composite bracket body, and a titanium clamp band / fixing bolt
  • Drop bar STI with shift buttons located in a near identical place to the positions you'd assume shifting using a mechanical Shimano STI
  • Hydraulic brake lever provides excellent stopping power with less effort especially from the hood position

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