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The Sumitomo ST778 is a highway terrain, all season tire made for commercial vehicles. It was made to be mounted on the steer axle. The tire promotes a longer lasting tread life. The ribbed tread design with the siping pattern and the durable compound enhance the length of the usability. They guarantee a slower and even wear rate and manner, by avoiding irregular wear formations across the tread area.
The tread design and all season compound work together to enhance the all weather traction. The symmetric ribbed pattern heightens the number of biting edges gripping the dry, wet and winter weather road surface, while the compound keeps the rubber flexibility in various weather conditions. The tread’s wide groove pattern avoids hydroplaning by dispersing water and slush from below the footprint. This combination ensures a safer all weather performance.
The Sumitomo ST778 enhances the load and driving durability. The four steel belt internal structure enhances the load and driving durability by preventing the tire’s deformation under the driving pressure. This enables the model to increase the load carrying and withstanding ability and power. By maintain the ideal tire shape under the pressure affecting it, the tire is able to perform at its utmost capability, allowing its safer heavy-duty application. This optimal tire shape closely follows the road surface at all times, which also upgrades the controllability. The better road contact increases the steering responsiveness and the driving stability, allowing the tire to boost the driver’s control over the vehicle.
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