The model features a reinforced steel belt internal structure that maintains the ideal tire shape under the load and driving pressure affecting the model. This enables the tire to increase the load carrying and handling ability and power, boosting the load capacity significantly. The maintained ideal shape optimizes the tire's surface contact during the drive. In this manner, the tire improves the steering responsiveness and the driving stability. The tire becomes faster and more precise in its responsiveness to the driver's steering instructions, while the structure is secured against the driving pressure affecting the model. This combination ensures the driver's full control over the vehicle, even during its heavy load performance.