Dreamruns
Shimano SM-JC40 Di2 External Frame Junction Box 4-Port
- Dreamruns$48.26Buy
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From Dreamruns
Shimano SM-JC40 Di2 External Frame Junction Box 4-Port. Shimano Di2 Frame Junction BoxFrame Junction Box connects via SD50 E-tube wires to four different points: front derailleur rear derailleur cockpit junction box and battery mount. All Di2 component...