Shimano SM-EW90 E-tube Di2 Junction

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  • 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
  • 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

Additional information


3 port, 5 port


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