Shimano DI2 Junction SM-JC41

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Rp380,000.00
This Di2 B- junction box "splits" the main wire from the A junction box. It is a simple, small hub that has 4 female connectors and serves as the junction point in the bottom bracket area. Usually a front derailleur, rear derailleur and battery are connected to the Junction B. Please note that this junction box is specifically made for frames that accomodate an internally routed system.
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