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Shimano Di2 SM-EW90 Junction Box

Regular price $0.00 $139.95 Sale

This junction A is required to connect the shifters via E-tube wires to the down tube junction wire

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

Stem mounting strap included