Polymer coated stainless steel inner gear cable for the ultimate in smooth shifting performance, designed to complement the top-of-the-range Shimano Dura-Ace 9000 gears systemThe Polymer coating is applied in a spiral formation around the stainless steel inner wire providing excellent support for the silicon grease and reducing the surface contact of the inner wire on the outer casingThe Polymer coated is applied to precision ground round inner wires all combining to create a smooth low friction shifting action with increased service life due to its anti-corrosion natureSuitable for front or rear mechs, just cut to fitUse with SP41 gear cable outer1.2 mm x 2100 mm