Shimano Ew-rs910 E-tube Di2 Junction Box

The Shimano E-tube Di2 Frame/Bar Plug Mount Junction A Charging Point 2 Port allows you to discreetly position the charging port at the end of the handlebar. This Junction A connects 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 A 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