The disclosure pertains to the tyre industry and relates more specifically to a system of lining levels for protecting tyres that prevents pointed objects from puncturing the air chamber, or in tubeless tyres prevents pointed objects from emptying the air from the tyre, being applicable to practically all types of tyre. According to the disclosure, when the puncturing object comes into contact with the tread, it is bent and deformed, preventing it from coming into contact with the air chamber or with the air in the case of tubeless tyres. The puncturing object penetrates the rubber of the tyre, but when it reaches the lining, instead of puncturing it or deforming it, the object is bent due to a hardness ratio between the lining and the tread combined with the movement of the wheel.