Shimano 105 Di2 R7170 2×12‑Speed Electronic Shifters + RD‑R7150 Set From Japan
ST (shift lever) - R7170 left and right. RD (rear derailleur) - R7150. FD (front derailleur) - R7150. BR (brake) - R7170. Step into the world of precision shifting—this genuineShimano 105 R7170 Di2 setup includes.