Shimano Di2 3 Port Junction-a

The Di2 3 Port Junction-A is required to connect the shifters via E-tube wires to the down tube junc

The Di2 3 Port Junction-A is required to connect the shifters via E-tube wires to the down tube junction wire. The removal of traditional mechanical cables in favour of electrical wires not only eliminates poor shifting caused by contaminates, corrosion and stretching, but provides effortless gear shifts. This junction has an additional charging point when using internal battery, reliable and secure water resistant connectors.

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