The special directional tread pattern's continuous center rib maintains the tire's road contact at all times, which boosts the steering responsiveness and the driving stability. In this manner, the steering becomes faster and more precise in its response to the driver's commands, while the structure is secured during the drive. This, combined with the tread's even pressure distribution, enhances the high speed performance. The compound and the tread design resists heat build-up along the tread area, which, along with the better controllability, enables the tire's high speed driving safety.