The tread design keeps a close road contact, allowing the tire to upgrade the steering responsiveness and the driving stability. As a result, the tire is quicker and more precise in its response to the driver's commands, while the structure is secured against the driving pressure affecting the tire. The shoulder block pattern with the siping placement increases the cornering ability with extra biting edges, greatly upgrading the maneuvering capability. The tire's stronger internal structure allows the tire to boost the load capacity as well, enabling the tire's commercial van applications.