Shimano Dura Ace FD-7970 Di2 Electronic 2x10-Speed Front Derailleur New

Dura-Ace Di2 FD-7970 Front Derailleur Information. The front derailleur contains the shifting logic and enables the shifters to stay in constant communication with the whole system. Front shifting is the most perfect front shift available today. With automatic micro-trim adjustments, the chain is kept perfectly aligned and quiet.