Shimano Ultegra TT/Triathlon dual control lever.
– Reduced drag through a more aerodynamic design
– Eliminated the switch box of ST-6871 to make the design smaller and shorter
– Intuitive shifting control
– Keep firm when shifting
– Single button on each side of the shift lever only works with Synchronized Shift
– 2×11-speed
– Average Weight: 138 g/pair





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