Shimano
Shimano EW-JC304 Di2 Junction Box - 4 Ports, Use With EW-SD300
Shimano EW-JC304 Di2 Junction Box - 4 Ports, Use With EW-SD300
Regular price
$40.40 USD
Regular price
$34.00 USD
Sale price
$40.40 USD
Unit price
per
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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
- 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/