Shimano Junction-B SM-CJ41 4 Port Internal Wire
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Shimano Junction-B SM-CJ41 4 Port Internal Wire
SM-JC41
SHIMANO - Junction B - E-TUBE - External Wire Routing - 4-Port
For external DI2 wire routing, SHIMANO's SM-JC40 Junction B is the central connector for DI2 systems. Wires from the front and rear derailleurs, cockpit area, and battery all plug into the 4-port SM-JC40 junction, which is mounted under the bottom bracket.
- For external wire routing
- Model: SM-JC41
- Type: For built-in type
- E-tube port (pcs): 4
- E-tube connector (pcs): 0
- Master unit: No
- Compatible system: E-Tube
- Compatible electric wire: EW-SD50
- Wire routing: internal
Compatibility
- Dura Ace Di2 9070
- Dura Ace Di2 R9150
- Ultegra Di2 6770
- Ultegra Di2 6870
- Alfine Di2
- XTR Di2 M9050
- XT Di2 M8050
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