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Dura-Ace 9170 shifters are the first in series Di2 lever with hydraulic disc brakes. Tom Meeusen's Canyon Inflight CF SLX. © A. Yee / Cyclocross Magazine - Cyclocross Magazine - Cyclocross and
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Shimano Dura-Ace Di2 ST-R9170 Shifter/Hydraulic Lever with Assembled BR-9170 Disc Brake | R&A Cycles
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