Zenna Sport Line. FEATURES AND BENEFITS: All weather traction; Enhanced controllability; Decreased road noise levels; High speed driving durability; . OVERVIEW: The Zenna Sport Line is an all season tire manufactured for passenger vehicles and SUVs. It comes in performance (H and V rated) and high performance (W rated) models, depending on the specific tire's speed rating. This model has some touring sizes (T rated) as well. Zenna offers a 60,000 mile treadwear warranty with this model.The tire promotes great all weather traction. The all season tire compound and the tread design work together to ensure first-rate dry, wet and winter weather road gripping ability. They firmly grip the road surface in such situations and ensure a safer year round performance. The tire compound keeps its excellent flexibility in all weather, while the tread design does not loosen its road grip. The circumferential and lateral grooves actively eliminate water and slush from below the tire's footprint to effectively resist hydroplaning, to guarantee a secure driving experience.The constant road contact improves the model's controllability in all conditions. The tread's twin center ribs and the larger tread blocks increase the steering responsiveness and driving stability. This results in a faster and more accurate steering response to the driver's commands and a stabilized structure that resists the force of the driving pressure. The large shoulder tread blocks boost the cornering and maneuvering ability as well. They increase the number of biting edges that firmly grip the road in such situations and make the drive safer in all weather.The model offers a comfortable drive. The special tread pattern is noise-treated. This means that it is capable of decreasing the road noise heard in the vehicle's cabin while the tires are in motion. The tread elements channel the airwaves through the tire's footprint without letting them come into contact with the tread elements. The lower levels of road noise ensure a quiet and enjoyable driving experience.The Sport Line guarantees a safe high speed performance. The tire prevents deformation under the driving pressure affecting the tire during high speed driving. The optimized tire shape allows the model to perform to its highest capability all year round. 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.