The internal structure's steel belt reinforcement maintains the ideal tire shape under the load and driving pressure affecting the tire. This actively prevents the tire shape from deforming under the load and driving pressure affecting the model, boosting the load capacity. As a result, the tire can easily carry, handle and withstand heavy loads without the tire's deformation, which greatly enhances the load capacity. The maintained ideal tread design also optimizes the surface contact, which enables the tire to boost the steering responsiveness and the driving stability throughout the drive.