The flat footprint ensures the tire's surface contact at all times, upgrading the steering responsiveness and driving stability. In this manner, the tire improves the steering response time and precision to the towing vehicle's instructions, while it secures structural stability. On the other hand, the steel belt structure keeps the ideal tire shape under the load and driving pressure. As the tire does not deform under the load pressure, it is able to significantly upgrade the load capacity. This boosts the overall load durability, while optimizing the towing vehicle's power over the trailer.