Innovative belt structure with a single ply of steel cords wrapped around a radial carcass at Zero Degree. Patented high performance technology by Metzeler for both front and rear tyres. Steel features a higher stiffness than textile and this allows the reduction of the tyre weight. Steel radial belt reduces the dynamic deformation of the tyre under centrifugal forces giving the tyre an excellent high speed stability. Thanks to the more uniform heat distribution, mileage is increased and wear characteristics are more uniform.