In other words, close road contact upgrades steering responsiveness and driving stability. The steering response time is faster and more precise to the driver's commands, while the structure is secured against driving pressure. At the same time, wide shoulder blocks firmly grip the road surface and increase maneuvering. The strengthened internal structure and durable rubber compound enhance the high speed performance. This construction does not allow the tire to deform under pressure, while the rubber compound prevents heat build-up along the tread area. As a result, this construction and rubber compound boost its high speed durability.