The Shimano MTB Gear Cable Set gives you everything you need to replace old gear cables in one handy pack. Complete MTB gear cable set with all you need in one handy packFitting new gears or completely overhauling your gear cabling couldn't be easier - everything you need in one packIncludes 1.2 mm inner wires (1 x 2100 mm, 1 x 1800 mm) and black 4 mm SP41 outer casing for a complete bike (1 x 3000 mm), and sealed outer caps one with added tongue for rubber shield plus inner end capsStainless steel precision ground round inner wire leaves a smooth surface for low friction while providing high corrosion resistanceOuter casing is lubricated internally along its length with low-friction silicone grease to reduce cable frictionSpecial construction process makes for an axially stiff outer casing that transmits shifting movements accurately and quicklyOuter casing is lined with a polymer sheath to assist with the smooth operation of the inner wireThe outer casing is lubricated internally along its length with low-friction silicone grease to reduce cable friction and give you super smooth shifting. The stainless-steel precision ground round inner wire leaves a smooth surface for low friction while providing high corrosion resistance which means it will last longer. The special construction process makes for an axially stiff outer casing that transmits shifting movements accurately and quickly.