Complete top of the range gear cable set designed to suit dura ace 7900 and ultegra 6700 gears fitting new gears or completely overhauling your gear cabling couldn39t be easier everything you need in one pack includes 12 mm inner wires 2 x 2000 mmand black 4 mm outer casing for a complete bike 2 x 600 mm and 1 x 320 mm and all end caps die extruded ptfe coated inner wire leaves a smooth surface for low friction in use and stainless steel provides smooth shifting and higher cor