Shimano Ultegra FD-R8150 Di2 12 Speed Front Derailleur E-tube, Braze-on, Double

• Full and semi synchronized shifting programable, Synchro shift compatible meaning a single shifter can control both front and rear shifting which can be fully custom tuned to your riding preferences. When a front shift is made the rear mech will automatically correct to the appropriate ratio
• The front derailleur also trims automatically; the cage moves in response to the position of the rear derailleur on the cassette to ensure no chain rub
• Designed to work with the wider gear pitch spacing Shimano chainsets without sacrificing shifting performance
• Braze-on fit as standard
• 12-speed E-tube SD300 wire compatible

The Shimano Ultegra Di2 front derailleur's operation is pioneering, smooth shifting is guaranteed thanks to wireless communication with the gear levers. What's more, shifting the rear derailleur automatically trims the front derailleur.

The Ultegra R8150 12 speed Di2 front derailleur is our first wireless system and is packed with new features but still retaining our high performance Di2 shift technology.