Shimano Di2 EW-RS910 Junction A Box

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The removal of traditional mechanical cables in favour of electrical wires not only eliminates poor shifting caused by contaminants, corrosion and stretching, but provides effortle ss gear shifts.The Shimano Di2 EW-RS910 Junction A Box is required to connect the shifters via E-tube wires to the down tube junction wire For either specific frame mount or handlebar end plug mount 2-port design 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 Show more