The center ribs maintain the surface contact while the tires are in motion, upgrading the steering responsiveness and the driving stability. In this manner, the tire is quicker and more precise in its response to the driver's commands, upgrading the driver's constant control over the vehicle. On the other hand, the structure is secured against the driving pressure affecting the tire, ensuring the safer performing ability. The shoulder block pattern allows the tire to increase the grip on the road surface with extra biting edges, upgrading the cornering capability and power. As a result, the tire further ensures the driver's control over the vehicle.