The reinforced four belt structure keeps ideal tread design to enhance the load and driving stability. The belt structure prevents the tire's deformation under the load and driving pressure affecting the tire. As the tire does not deform under the pressure, it is able to carry and withstand heavy loads, which increases the load capacity. The optimal tire shape also boosts the controllability. The symmetric ribbed pattern and the ideal shape maintain the ideal surface contact, which upgrades the steering responsiveness and the driving stability. In this manner, the tire increases the controllability and handling.