External Junction B
The junction box SM-JC40 is used externally, when internal cable routing or an internal junction box (SM-JC41) is not possible. It is usually placed underneath the bottom bracket, fixed to the frame using a screw.
Details & Specifications
| Shimano model number: | SM-JC40 |
| Weight: | 8 g |
| E-Tube ports: | 4 |
| E-Tube Port type: | SD50 |
| Type: | Junction B |
| Component series: | Non-series components NON (All) |
Shopping links
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