Internal Junction B
The junction box EW-JC304 is used inside the frame to connect 4 EW-SD300 E-Tube wires to each other. This is the future equivalent of the SM-JC41 internal junction B.
Details & Specifications
| Shimano model number: | EW-JC304 |
| Weight: | 5 g |
| E-Tube ports: | 4 |
| E-Tube Port type: | SD300 |
| Type: | Junction B |
| Component series: | Non-series components NON (All) |
