> Items in Warehouse - Allow 5-7 days > Components > Shifter > Electronic Shifter Parts, Shimano > Junction Box > Shimano JC40 Di2 External Frame Junction Box 4-Port


JC40 Di2 External Frame Junction Box 4-Port (CY6760)

  • This manufacturer prefers that we only sell this item in our retail store. Please call our Richardson store to check availability. 972-231-3993
Shimano Di2 Frame Junction Box
  • Use Di2 system checker to update component firmware from
  • Frame Junction Box connects via SD50 E-tube wires to four different points: front derailleur, rear deailleur, 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
  • Mounts underneath the bottom bracket shell
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9040 Garland Rd.
Dallas, TX 75218
1451 W. Campbell Rd.
Richardson, TX 75080
8820 John Hickman Pkwy.
Frisco, TX 75034
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