Shimano EW-JC304 Di2 Junction Box
US$12.80
Price when purchased online
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US$12.80
Price when purchased online
Free shipping
Free 30-day returns
Sold and shipped by neiffman.org
Free 30-day returns Details
Product details
| Management number | 236310029 | Release Date | 2026/07/09 | List Price | US$12.80 | Model Number | 236310029 | ||
|---|---|---|---|---|---|---|---|---|---|
| Category | |||||||||
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
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