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Description
- Top of the range, high-performance Dura-Ace hydraulic disc brake Di2 TT 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
- Full synchronized shifting programable, Synchro shift compatible meaning a single shifter button either side can control both front and rear shifting which can be fully custom tuned to your riding preferences
- TT STI with one shift button on each side