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
E-tube connector (QTY) 0

 

(710)

SKU 710
Brand Shimano