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 12-speed equivalent of the SM-JC41 internal junction B.
Details & Specifications
Model number:
EW-JC304
Weight:
5 g
E-Tube ports:
4
E-Tube Port type:
SD300
Type:
Junction B
Series:
Non-series components NON (All)
Shopping links
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