Shimano EW-SD50 E-tube Ultegra Dura Ace Di2 electric wire 150/400/800/1200mm Shimano EW-SD50 E-tube Ultegra Dura Ace Di2 electric wire 150/400/800/1200mm

EW-SD50 wires are required to connect the junction (either SM-JC40 external or SM-JC41 internal to the rear mech, front mech, battery and to the handlebar battery indicator junction box Especially...

EW-SD50 wires are required to connect the junction (either SM-JC40 external or SM-JC41 internal to the rear mech, front mech, battery and to the handlebar battery indicator junction box Especially...