The SHIMANO ULTEGRA R8050 DI2 front derailleur delivers quick and smooth front shifting even under high pedaling torque. It has programmed chain guide trim settings and can be used in full or semi SHIMANO SYNCHRONIZED SHIFT modes.

Features
Quick and smooth front shifting under high pedaling torque
Programmed chainguide control
Full and semi synchronized shifting program
Redesigned to fit a wider gear pitch without sacrificing shifting performance
Shorter rear-center length (410 mm) with 135 mm O.L.D.
System communication with rear derailleur, combined with programmed chainguide control means minimal chance of chain drop

Mfr Claimed Weight
132g