Shimano FRONT DERAILLEUR, FD-R8050, ULTEGRA Di2, BRAZED-ON TYPE, FOR REAR 11-SPEED

Programmed control of chain guide
Full and semi synchronized shifting program
System communication with rear derailleur, Programmed control of chainguide works for minimal chance of chain drop
Quick and smooth front shifting under high pedaling torque
SHIMANO Synchronized shift
Redesigned to fit wider gear pitch without sacrificing shifting
Shorter length of rear center (410mm) with O.L.D. 135mm