Sumitomo ST719. FEATURES AND BENEFITS: All weather traction; Damage resistance; Longer tread life; . OVERVIEW: The Sumitomo ST719 is a highway terrain, all season tire manufactured for commercial vehicles. It was made to be mounted on the vehicle in all axle positions.The tire promotes a lengthened tread life. The durable tire compound and the tread design work together to improve the tread life and usability. The compound is wear-resistant and it actively prevents scrubbing on high-scrub applications, while also resisting punctures and cuts from harming the tread elements. The symmetric ribbed tread design's flat footprint optimizes the tire's road contact and ensures even driving pressure distribution. The equally circulated forces of acceleration, cornering and braking avoids the formations of irregular tread wear along the tread area. The damage resistance and longer tread life boost the tire's service life.The tread pattern promotes an excellent self-cleaning capability. The circumferential grooves feature stone ejectors that eliminate rocks stuck between the tread elements. This actively prevents stone retention from drilling into the tire's casing and damaging it. Furthermore, this tread design also disperses mud and snow from the grooves, keeping the tire's footprint clean at all times. The clean footprint ensures the tire's traction throughout its performance.The ST719 offers great all weather traction. The symmetric ribbed tread design and the all season tire compound increase the dry, wet and winter weather grip. The tread's ribs closely follow the road surface, while the siping pattern improves the number of biting edges gripping the road surface. The compound maintains the tire's rubber flexibility even in colder temperatures. The tread's groove pattern channels water and slush from below the tire's footprint, actively resisting hydroplaning in the process and providing a secure performance.Manufacturers recommend changing tires every 10 years. As long as tires are properly stored before they are sold, the year of their manufacture will not shorten their service life.