The continuous center rib maintains its contact with the road surface at all times, which enhances the steering responsiveness and driving stability. In other words, the steering becomes faster and more precise in its response to the driver's commands, while the structure is stabilized against the driving pressure affecting the model. The optimal shoulder tread block pattern heightens the number of biting edges that firmly grip the road surface during cornering and maneuvering. The firmer road grip during such situations ensures a secure high speed performing capability throughout the tire's lifetime.