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 mountAll Di2 components on the bicycle require the same firmware version. Using Di
Shimano Di2 Frame Junction Box
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 mountAll Di2 components on the bicycle require the same firmware version. Using Di
Shimano Di2 Frame Junction Box
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