Smooth shifting is key to a smooth ride, and the quality of your shift cables can make as much of a difference as good quality shifters and derailleurs. Achieve the smoothest shifting yet with this polymer coated, super-slick inner gear cable from Shimano. Designed for top-end Dura-Ace 9000 mechanical shifting, this cable will enhance any Shimano shifting system. Key Features: 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 gear system. The 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 casing. The Polymer coating 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 nature. Suitable for front or rear mechs, just cut to fit. Use with SP41 gear cable outer. 1.2 mm x 2100 mm.