Haida HD515. FEATURES AND BENEFITS: All weather traction; Enhanced controllability; Longer lasting tread life; . OVERVIEW: The Haida HD515 is a highway terrain, all season tire manufactured for commercial vehicles.The tire improves the year round traction. It manages to combine the all season compound and the ideal tread design to improve the dry, wet and winter weather grip on the road surface. The detailed siping and groove placement of the footprint upgrades the traction with a higher number of biting edges. The tread design's compound optimizes the rubber flexibility in versatile temperatures, enhancing the all weather performing safety. The circumferential grooves allow the tire to disperse water and slush from the footprint, resulting in safer hydroplaning resistance. This guarantees a secure wet weather performance.The strengthened internal structure upgrades the load durability and the controllability. The reinforced internal structure allows the tire to maintain the ideal tire shape under versatile pressures. This prevents the tire from deforming under the heavy-load pressure during the performance, which increases the load capacity. The better surface contact also improves the steering responsiveness and the driving stability. In this manner, the tire offers a quicker and more precise response to the driver's commands, while the structure is secured against the driving pressure affecting the model. This combination greatly enhances the driver's control over the vehicle.The HD515 optimizes the length of the tread life. The stronger compound materials and the stabilized tread elements upgrade the usability. The compound elements slow the treadwear rate down as it uses wear-resistant rubber materials. The secured footprint maintains the surface contact, allowing the tire to evenly distribute the driving pressure across the tread area. This effectively avoids irregular wear formations. The reduced and even wear greatly enhances the overall service life. There might be discrepancies of sizes between brands and models of tires which have this size formatting. As the manufacturers only provide the tire width and the rim diameter with these tires, various brands and models will have size differences. In order to ensure the correct size is purchased, the overall tire diameter that is needed should be checked.The Overall Diameter or O.D. advertised represents the tire's overall diameter in inches, once the tire has been properly inflated and mounted per the manufacturer's recommendation. This advertised number is provided to Priority Tire by the tire manufacturer.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.