The tread's siped continuous center rib keeps a constant road contact, which boosts the steering responsiveness and driving stability. In this manner, the steering becomes faster and more precise in its responsiveness to the driver's commands, while the structure is stabilized against the driving pressure affecting the tire during the drive. The model's shoulder tread block placement heightens the number of biting edges firmly gripping the road surface while cornering and maneuvering. This improves the cornering ability and power greatly and allows the driver to confidently control the vehicle in all weather.