Full- and semi-synchronized shifting functions can be selected using the E-TUBE app. With digitally accurate electronic shifts and coordinated communication between shifters and derailleurs, the new SHIMANO 105 front derailleur offers the best shifting you've ever experienced. Powerful, accurate, smooth front shifting. Programmed chain guide control by automatic trim. Manual, full- and semi-synchronized shifting program.
Top gear teeth capacity: 50-52T. SERIES: SHIMANO 105 R7100 Di2 Series. Firmware update by E-TUBE PROJECT. Over 99% of positive feedbacks.
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The seller is "cyclingvelo" and is located in this country: HK. This item can be shipped worldwide.