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Shimano SM-JC41 Di2 Internal Frame Junction Box 4-Port
Shimano SM-JC41 Di2 Internal Frame Junction Box 4-Port
 
Our Price: $30.99



Product Code: SHIMANO13-ISMJC41
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Description
 
Shimano SM-JC41 Di2 Internal Frame Junction Box 4-Portx: Exclusively for Di2 E-tube electronic shifting systems (9071/9070/6770/R671/R600). Please consult Shimano.com for proper measuring information. Check with frame manufacturer for appropriate external/internal junctions.

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/
Specs & Information
  • Description: 9070/6770-Di2 external junction box
  • model: SM-JC40

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