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Shimano SM-JC41 Di2 Internal Junction B Box 4 Port

Item #CSH10024
Condition:
New — Open

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Why We Love It
For internal DI2 wire routing, SHIMANO's SM-JC41 Junction B is the central connector for DI2 systems. Wires from the front and rear derailleurs, cockpit area, and battery all plug into the 4-port SM-JC41 junction, which is housed inside the bike frame.
About This Item
  • 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/
Specifications
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Details
Brand Shimano
Model SM-JC41
Intended Use Mountain,Road
Weight 4 grams
mpn ISMJC41
upc 689228827462
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