The tread design, with the continuous center rib and the detailed siping pattern, increases the tire's surface grip. In this manner, the tire enhances the steering responsiveness and the driving stability. The tread's ideal shoulder block placement boosts the cornering ability and power, with additional biting edges gripping the road surface. The stronger construction maintains its ideal shape under the high speed driving pressure, enabling the tire to perform at its best high speed ability. This combination provides safer high speed drive.