Shimano SM-JC41 Internal X4 E-Tube Port Ultegra Di2 Frame Junction Boxe
$38.00
Availability: In Stock
-Frame Junction Box connects via SD50 E-tube wires to four different points: front derailleur, rear derailleur, cockpit junction box and battery mount
-External Junction Box mounts underneath the bottom bracket shell
Description
Shimano Di2 Frame Junction Box
- Frame Junction Box connects via SD50 E-tube wires to four different points: front derailleur, rear derailleur, cockpit junction box and battery mount
- External Junction Box mounts underneath the bottom bracket shell
- 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 http://e-tubeproject.shimano.com/
