EW-JC304 Di2 Junction Box - 4 Ports, Use With EW-SD300
$34.00
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Shimano Di2 Frame Junction Box
- Frame Junction Box connects via EW-SD300 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 http://e-tubeproject.shimano.com/
EW-JC304 Di2 Junction Box - 4 Ports, Use With EW-SD300
$34.00
In stock at the shop in Scandia — pick up in store, or we ship within 1–2 business days.
- Frame Junction Box connects via EW-SD300 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 http://e-tubeproject.shimano.com/