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5mm/ 175mm 50-34T/52-36T
Our fastest ever front shifting
in case you’re feeling extra
Compatible with current road Dual Control Lever
which yield a significant reduction in noise
SHIMANO ULTEGRA R8170 Shifter Shift Hydraulic Disc Brake Lever 2*12S crankset crank 5mm/ 175mm 50-34T/52-36TThe shift brake levers ST R8170 are operated by a button cell CR1632, which lasts at least 1. 5 years and can be replaced by yourself. They communicate using a wireless protocol with the rear derailleur, which in turn is wired to the battery and indirectly to the front derailleur. Not only do you benefit from lightning fast switching operations and a tidy cockpit, installation is also much easier without cables. Alternatively, you can also use the
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