Shimano SIS SP41 Outer Gear Casing with Silicon Grease, Black 4mm – 50 metre roll

Roll of 50 metres of 4 mm diameter SIS SP41 black outer cable casing. Lubricated internally along its length with low-friction silicone grease to reduce cable friction. Special construction process makes for an axially stiff casing that transmits shifting movements accurately and quickly. Lined with a polymer sheath to assist with the smooth operation of the inner wire. For use with 1.2 mm diameter inner wires.