Shimano SM-EW90-A Dura-Ace Di2 Junction A

ISMEW90A

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Shimano SM-EW90-A Dura-Ace Di2 Junction A

Shimano Di2 Junction Box

  • All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions
  • Use Di2 system checker to update component firmware from http://e-tubeproject.shimano.com/
  • SM-EW90-A 3-Port Cockpit Junction Box connects 1 pair of Di2 shifters to the frame junction box via 3 SD50 E-tube wires
  • OEM front wiring kit for Dura-Ace Di2 9070
  • LED battery charge level indicator
  • Rear Derailleur adjustment mode
  • Internal Battery charging port
  • Includes Junction Box Band (CY9082) and Junction Box Hook (Mounting Plate, CY9081)