This is achieved with the special tire compound used in the tire's manufacture. It effectively resists tread cracking and prevents irregular wear patterns from forming. The compound stiffens the tread elements, avoiding tread flexing, which guarantees an evenly worn tread pattern. The tread design also features stone rejectors placed in the tread grooves. They eject rocks stuck between the tread elements, all the while protecting the casing and avoiding stone drilling that can harm the tire.