Shimano EW-SD50 E-tube Di2 Electric Wire 1200mm

The removal of traditional mechanical cables in favour of electrical wires not only eliminates poor shifting caused by contaminates; corrosion and stretching; but provides effortless gear shifts; and the Shimano EW-SD50 E-tube Di2 electric wire; 1200mm connects the junction to the rear mech; front mech; battery and to the handlebar battery indicator junction box.