The Shimano RD-6770 Ultegra Di2 10-speed Rear Derailleur E-tube, SS cage is, as with all Shimano components, reliable, durable and designed featuring the utmost attention to detail. Compatible with Di2 electronic shifting, this rear derailleur is precise, honed and direct in providing the smooth changes you need.
Compatible with 10-speed cassettes offering an 11-28 teeth gear ratio capacity, this rear derailleur is ideal for both compact and traditional road crankset options. With automatically programmed motion effected by a simple touch, this rear derailleur is composed of high tolerance cold forged aluminium link plates, and with four self-lubricating micro-machined fluorine coated link pivot bushings, you can be sure of long lasting durability and reduced friction in your drive train.
Working seamlessly with Ultegra 6770 componentry, this rear derailleur is a premium choice that will provide the velvet smooth shifting that will allow you to take your performances to the next level.