Di2 4-Port Junction Box

Di2 4-Port Junction Box


Regular price$28.99

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