Shimano EW-JC302 Di2 Junction Box - 2 Ports, Use With EW-SD300

SKU: 

192790597188

$24.99 $27.00
by Shimano
Default

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/