Shimano Non-Series Di2 EW-SD300 E-tube Di2 electric wire, 400 mm, black

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 E-tube STEPS EP8 uses a fully removable individual cable system enabling fine tuning with the correct cable length to each component for easy and tidy fitment EW-SD300 wires use a slim 3.45 mm diameter plug, they can be connected to EW-SD50 wires with the use of EW-AD305 adapter EW-SD300 individual wires are available in varying lengths, there is no need (or facility) to cut these cables Reliable and secure water resistant connectors