Description
Shimano Ultegra Di2 Wire Harness
- Requires SD50 E-tube wire to connect to frame junction box
- SM-EW67A-E Cockpit Junction Box connects to STI levers with built-in E-tube wires
- OEM front wiring kit for Ultegra Di2 6770
- Not compatible with Internal Battery (BTR2), due to lack of charging port
- LED battery charge level indicator
- Rear Derailleur adjustment mode
- Use Di2 system checker to update component firmware fromhttp://e-tubeproject.shimano.com/
- All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions
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