This patented technology enables the structure of both front and rear tire to be achieved using a radial carcass and a single layer belt made of steel. Depending on the rolling direction of the tire, the belt is wound circumferentially around the carcass giving an angle
close to 0°.
The advantages of the use of steel are due to its extremely high rigidity and the possibility to tune the winding spacing thus differentiating the stiffness distribution from shoulder to crown.
The main difference from the bias-belted construction is the structure of the carcass in this case is radial. Its cords are wrapped radially around the tire, from one bead to the other. This way, low-section tires can be manufactured, resulting in substantial advantages in terms of cornering stability, reduced weight and high-speed performance. High levels of rigidity allow the tire to tune the winding spacing to achieve a differention in the stiffness distribution from shoulder to crown.
The structure consists of a conventional carcass and a belt made of two or more crossed layers. The difference between the carcass and the belt is determined by the different goals they are designed to fulfill and consequently different materials are used in the construction.
The belt is made mainly from Aramide and it's function is to reduce the dynamic deformation caused by centrifugal forces, while the carcass provides the tire with its stiffness and load carrying capacity.
Also described as conventional or x-ply tire. Depending on the different speed and load specifications, the tire carcass is structured using two or more overlapping layers.
Each layer is made of rubber coated textile cords and the overlap angle is designed in order for the tire to conform with the required dynamic characteristics.