Rear derailleur gear cable set designed to suit the top-of-the-range XTR gears Includes 1.2 mm inner wires (1 x 2100 mm), and black 4 mm SP41 outer casing for the rear derailleur (1 x 2000 mm), 4x sealed outer caps with added tongue with rubber shields, 1x plastic sealed caps, 1x Alloy sealed caps plus inner end caps Polymer coated stainless steel precision ground round inner wire leaves a smooth surface for low friction while providing high corrosion resistance Outer casing is lubricated internally along its length with low-friction silicone grease to reduce cable friction