Shimano E-Tube Di2 Internal Junction B Box
US$15.20
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Product details
| Management number | 236240330 | Release Date | 2026/07/09 | List Price | US$15.20 | Model Number | 236240330 | ||
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Shimano E-Tube Di2 Internal Junction B Box
The Shimano Di2 SM-JC41 is designed to connect SD50 E-tube wires along four points; front derailleur, rear derailleur, cockpit junction and battery mount.
The B-Box is used to split the main wire from Junction A to the front and rear derailleurs. It can also be used to connect a seatpost mounted battery to the system.
Specifically designed for internally mounted systems - for External use SM-JC40.
The Shimano Di2 SM-JC41 is designed to connect SD50 E-tube wires along four points; front derailleur, rear derailleur, cockpit junction and battery mount.
The B-Box is used to split the main wire from Junction A to the front and rear derailleurs. It can also be used to connect a seatpost mounted battery to the system.
Specifically designed for internally mounted systems - for External use SM-JC40.
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