21% off

Shimano SM-JC41 Di2 Internal Frame Junction Box 4-Port

$37.43 $47.68
By Shimano
SKU: CY6762 // Barcode: 689228827462
Expected Ship Date: Mon May 12
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Shimano SM-JC41 Di2 Internal Frame Junction Box 4-Port. 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/