The Matris KD is a rear shock for Naked & Road bikes, of very easy use and adjust for the road rider to get a right set-up. Computerized engineering systems are used to design, project and produce all the components and only materials of high-end technical and mechanical characteristics are used. High precision machining with the objective of reducing weight and friction to offer a basic range of shocks to improve comfort, safety, and setting (always with Matris look ).Piston shaft D.16 mm made from high tensile alloy Steel, hard Chrome coatedNitrogen gas (N2) charging valveFully rebuildable and revalvableAll components, machined from ALU alloy, are with anodising treatmentMade in Italy