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Shimano SM-JC41 4 Port Junction Unit SD50

Shimano SM-JC41 4 Port Junction Unit SD50

This is the Shimano Ultegra Di2 Internal Junction Box. This box is referred to as the junction box "B" on a Di2 build. The SM-JC41 is for use with internal wiring setups and is the main centre of e-tube Di2 systems.Frame Junction Box connects via SD50 E-tube wires to four different points: front derailleur, rear derailleur, cockpit junction box and battery mount 

Compatible with:

  • Dura Ace Di2 9070
  • Dura Ace Di2 R9150
  • Ultegra Di2 6770
  • Ultegra Di2 6870
  • Alfine Di2
$11.79

Original: $39.29

-70%
Shimano SM-JC41 4 Port Junction Unit SD50—

$39.29

$11.79

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Description

This is the Shimano Ultegra Di2 Internal Junction Box. This box is referred to as the junction box "B" on a Di2 build. The SM-JC41 is for use with internal wiring setups and is the main centre of e-tube Di2 systems.Frame Junction Box connects via SD50 E-tube wires to four different points: front derailleur, rear derailleur, cockpit junction box and battery mount 

Compatible with:

  • Dura Ace Di2 9070
  • Dura Ace Di2 R9150
  • Ultegra Di2 6770
  • Ultegra Di2 6870
  • Alfine Di2
Shimano SM-JC41 4 Port Junction Unit SD50 | Giant Lygon St