Xcellent Assure ST. FEATURES AND BENEFITS: All season traction; Enhanced controllability; Upgraded load durability; . OVERVIEW: The Xcellent Assure ST is a highway terrain, all season tire manufactured for trailers. This tire is NOT MEANT TO BE MOUNTED ON LIGHT TRUCKS, as its construction will not support the weight and performing style of such vehicles. It can ONLY BE MOUNTED ON TRAILERS.The tire promotes great all season traction. The durable, all season compound and symmetric, ribbed tread design enhance the tire's dry, wet, and winter weather grip on the road surface. As a result, the combination of these elements significantly increases the tire's year-round performance. The sipe and groove placement firmly grips the road by providing extra biting edges. Stronger compound elements optimize rubber flexibility, ensuring its summer and winter weather applications. Hydroplaning is also prevented with the circumferential grooves, as they disperse water and slush from the footprint in wet conditions.Great controllability is also ensured with this model. The ribbed block placement offers excellent steering responsiveness and driving stability. As a result, the tire offers excellent steering response time and accuracy, guaranteeing the towing vehicle's control over the trailer. On the other hand, the durable structure increases the tire's structural stability, further boosting its performance and preventing trailer swaying. The shoulder block pattern enhances the tire's cornering and maneuvering ability, enabling the tire's exceptional performance.The Assure ST is manufactured with a reinforced internal structure. The radial construction does not allow the tire to deform under load and driving pressure. As the tire is able to securely carry and withstand heavy loads, it significantly increases the tire's overall load capacity.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.