Cyclists with Ultegra Di2 systems, this is the front derailleur and battery wire you need to complete your electronic shifting setup! The Ultegra Di2 6770 system requires five distinct wire sections, and this handles the connection between your front derailleur and battery. One of the best features of the Ultegra Di2 system is that all the wires are the same except for length, with identical connections whether your frame has internal or external routing. This particular wire comes in three sizes: Short (500mm), Medium (550mm), and Long (600mm). When choosing your size, remember that too long is workable, but too short means you're stuck watching races from home instead of riding! The wires utilize Shimano's e-tube technology, which is their two-prong system (note: this is NOT cross-compatible with older Dura-Ace 7970 Di2 wiring). All e-tube wires can be used for both internal or external applications, giving you flexibility during installation. If you have an E-tube internal-wiring compatible frame, you'll need to purchase frame grommets separately. Installation is straightforward if you're familiar with Di2 systems, and the quality is exactly what you'd expect from Shimano - reliable and built to last. Whether you're building up a new bike or replacing a damaged wire, this Ultegra Di2 wire will restore perfect electronic shifting functionality to your ride.
Free 30-day returns 
Free 30-day returns
