Front derailleur SH FD-6770F 10-speed 50/56T 31.8/34.9 03003865

The revolutionary Dura-Ace Di2 electronic shifting option with SEIS (Shimano Electronic Intelligent System) takes the high-quality and proven Shimano shifting system to a whole new level. The increased precision, smoothness, and reliability of electronic shifting make gear changes faster and practically eliminate the chance of missing a shift. Since 2012, Shimano has incorporated the Di2 concept into a separate series of components for road bikes, the Ultegra 6770. The design of the individual components has also benefited from the experience of professional cycling racers. The front derailleur "contains the logic" of gear shifting and allows it to stay in constant communication with the entire system. Smooth gear changes are guaranteed thanks to communication with a built-in microchip in the bike's controls. Moving the rear derailleur automatically adjusts the front one. This helps avoid chain friction issues. The durable construction of the Ultegra Di2 FD-6770-F ensures fast, quiet, and smooth gear changes.