The center rib maintains the surface contact throughout the performance, boosting 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 and it secures the structural stability during the performance. The shoulder block pattern, with the siping placement, offers additional biting edges in order to enhance the cornering capability. The structural stability, the compound's heat build-up resistance and the constant surface contact enable the tire's high speed durability. As a result, the tire improves the high speed performing capability.