DI2 3-PORT JUNCTION BOX IN SOUTH AFRICA
Shimano SM-EW90-A 3 Port Di2 Junction Box This junction A is required to connect the shifters via E-tube wires to the down tube junction wire 3-port design, one for down tube wire to bottom bracket junction, two for shifter connection Battery level indicator feature E-tube EW-SD50 wires not included Additional charging point when using internal battery Gear index setup switch to allow fine tuning via shifter buttons Reliable and secure water resistant connectors
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