Shimano SM-EW90-A E-Tube Di2 Junction-A - 3 Port
With the Shimano SM-EW90-A E-Tube Di2 Junction-A - 3 Port 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 3-port design, one for down tube wire to bottom bracket junction, two for shifter connection.
Shimano SM-EW90-A E-Tube Di2 Junction-A - 3 Port Extra Info
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
