Shimano Ultegra R8050 Di2 Front Derailleur - Factory Overstock, Electronic Stress-free operation is one of the most important features for road bike components. ULTEGRA leads in all-day riding comfort with smooth braking and shifting. The true spirit of the sport ULTEGRA is "pro-proven" as it is a direct trickle-down from the DURA-ACE groupset. Product details Quick and smooth front shifting under high pedaling torque Programmed control of chain guide Full and semi synchronized shifting program Redesigned to fit wider gear pitch without sacrificing shifting System communication with rear derailleur Programmed control of chain guide works for minimal chance of chain drop Go green and save green - Zero packaging means zero waste and zero extra cost Specifications Pull: Electronic Attachment: Braze-on Swing: Bottom Clamp: Braze-on Chainstay angle: 61-66 Electronic: Yes Includes: Direct mount bolt
