Shimano, ISMEW90A, SM-EW90A, 3-port electric wire junction for regular handlebar

Description

* Front junction box for Di2 e-Tube wires* SM-EW90-A = 3 port (To connect regular road dual levers and climbing/sprinter swtiches)* SM-EW90-B = 5 port (To connect dual control levers (road or triathlon) and satellite switches and additional TT/triathlon switches)