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Product code: ISMJC41 | ID: 391748
For internal DI2 wire routing, SHIMANO's SM-JC41 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-JC41 junction, which is housed inside the bike frame.
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Overall score based on 4 user reviews:
Krzysztof L.
Overall impression
Wszystko prawidłowo. Szybka wysyłka
OLIVIER R.
Overall impression
Impeccable, sérieux et rapidité
Pavel Š.
Overall impression
Super cena