Complete Ultegra 6800 brake cable setFitting new brakes or completely overhauling your brake cabling couldn't be easier - everything you need in one packIncludes 1.6 mm Polymer wrapped inner wires (1 x 2000 mm, 1 x 1000 mm), and SLR outer casing for a complete bike (1 x 1800 mm, 1 x 800 mm), and all end capsPolymer wrapped stainless steel inner wire leaves a smooth surface for low friction and reduced sliding resistance providing a lighter quicker braking operationOuter casing is lubricated internally along its length with low-friction silicone grease to reduce cable frictionSLR casing uses a special spiral wound construction that is axially stiff yet can be bent around handlebar curvesThe outer casing is lined with a hard polymer sheath to keep its round shape to assist with the smooth operation of the inner wire