
Shimano EW-JC304 Di2 Junction Box
Shimano EW-JC304 Di2 Junction Box
- Shimano Di2 Frame Junction Box
- Connects via SD-300 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
- Number of Ports: 4
$9.60
Original: $31.99
-70%Shimano EW-JC304 Di2 Junction Box—
$31.99
$9.60Shimano EW-JC304 Di2 Junction Box
Shimano EW-JC304 Di2 Junction Box
- Shimano Di2 Frame Junction Box
- Connects via SD-300 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
- Number of Ports: 4
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Shimano EW-JC304 Di2 Junction Box
- Shimano Di2 Frame Junction Box
- Connects via SD-300 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
- Number of Ports: 4













