Shimano SM-EW90-A Electrical Distributor for Di2

Shimano SM-EW90-A Electrical Distributor for Di2


Regular priceRs. 9,760
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This is the Shimano DI2 Dura-Ace E-Tube Junction Box. This box is referred to as the junction Box A  and is located at the handlebars on a Di2 build. 
    • 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

    • SM-EW90-B: 5-Port Cockpit Junction Box connects up to 2 pairs of Di2 shifters to the frame junction box via 5 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

    • Use Di2 system checker to update component firmware from


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