Shimano Di2 Frame Junction Box
- Mounts underneath the bottom bracket shell
- Frame Junction Box connects via SD50 E-tube wires to four different points: front derailleur, rear derailleur, cockpit junction box and battery mount
- All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions
- Use Di2 system checker to update component firmware from https://e-tubeproject.shimano.com/
Description
Shimano Di2 Frame Junction Box
- Mounts underneath the bottom bracket shell
- Frame Junction Box connects via SD50 E-tube wires to four different points: front derailleur, rear derailleur, cockpit junction box and battery mount
- All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions
- Use Di2 system checker to update component firmware from https://e-tubeproject.shimano.com/
- Choosing a selection results in a full page refresh.
- Press the space key then arrow keys to make a selection.