DISC-BRAKE ASSEMBLED,SET/J-kit RR,DURA-ACE,DIR MNT,DI2/HYDRO
A true shifting and disc brake system for the next generation race bike, the Shimano Dura-Ace ST-R9170 Di2 Hydraulic Lever and BR-R9170 Disc Brake Caliper will propel you to the next level. The Di2 Dual Control Lever features a refined hood shape with sve
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