Shimano ST-R9160 Dura Ace Di2 TT/Triathlon

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.Features: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 shiftsSingle button on each side of the shift lever only works with synchronized shiftingSimply pressing tactile buttons allows effortless and comfortable shifting even when your hands are coldShifters are lightweight thanks to carbon fibre lever blades, carbon composite bracket body, and alloy expanding wedge clampTT/ triathlon bar sti allows shifting while braking and can be used with additional bar end switchesBrake lever pivot is positioned to be used with super slr brake callipersFinely tuneable reach adjusters for the levers enable custom fitment for all handsLevers are supplied without electrical cables, as these need to be ordered separately to suitFor use with e-tube electric cables