Roundrule Xtra. FEATURES AND BENEFITS: Enhanced controllability; All weather traction; Upgraded load durability; . OVERVIEW: The Roundrule Xtra 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 ideal tread design and the all season compound improve the tire's performance throughout the year. The ribbed tread design firmly grips the road surface with extra biting edges, offering stronger traction. Additionally, the all season compound keeps the rubber flexible in changing temperatures. This combination improves the tire's dry, wet, and winter-weather grip. This ribbed tread uses wide circumferential grooves to resist hydroplaning. The optimized grooves effectively disperse water and slush from the footprint, ensuring a safe year-round drive.The model promotes perfect performance on highways. The ribbed tread design maintains close road contact at all times. It improves the tire's steering responsiveness and towing stability. In other words, the steering response time is faster and more accurate to the towing vehicle's commands. Furthermore, the structure is secured also against driving pressure. At the same time, the model increases the tire's cornering and maneuvering, by generating the necessary number of biting edges.The Roundrule Xtra offers exceptional load and driving durability. The reinforced internal structure does not allow the tire to deform under load and driving pressure. This increases the tire's load-carrying and withstanding ability. This combination significantly upgrades the tire's load-carrying capacity and handling power, making this model perfect for trailer applications.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.