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Shimano EW-JC304 Di2 Junction Box - 4 Ports, Use With EW-SD300
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Shimano

Shimano EW-JC304 Di2 Junction Box - 4 Ports, Use With EW-SD300

MPN: IEWJC304 · UPC: 192790597195

$34.00
In Stock — Ready to Ship
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🏪 Free pickup: 26 Essex St (Rear), Andover MA · 978-270-4895
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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/
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Shimano EW-JC304 Di2 Junction Box - 4 Ports, Use With EW-SD300
$34.00
In Stock — Ready to Ship