Shimano (A) Junction Di2 SM-EW90-B Gilet Power Transfer

Power Transfer

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Shimano (A) Junction Di2 SM-EW90-B Gilet Power TransferDescription SHIMANO's SM EW90 A 3 port Junction A mounts neatly to the bike stem and connects with E TUBE wires from DI2 shifters and the downtube junction wire. The SM EW90 junction box features an integrated battery level indicator, charging port, and gear index setup switch. MODEL NO SM EW90 A SERIES DURA ACE 9070 Series Average weight 10 Type External type Position Under stem Compatible system E TUBE Compatible electric wire EW SD50 Firmware