Thunderer Mach IV . FEATURES AND BENEFITS: All weather traction; Vibration free drive; Better controllability; High speed durability; . OVERVIEW: The Thunderer Mach IV is a performance and high performance, depending on the speed rating of the specific tire size, all season tire manufactured for passenger vehicles. It has some T speed rated touring sizes as well. Thunderer offers a 60,000 mile treadwear warranty with this model.The aggressive directional tread pattern promotes all weather traction as its tread block design grips the road in dry, wet and winter weather. This enhanced road gripping ability ensures that the model is capable of performing at high speeds with ease and safety. The wider circumferential grooves increase the wet weather traction and avoid dangerous hydroplaning situations by channeling water away from beneath the tire footprint. The better water dispersal and all season road gripping ability provide a secure year round drive.The tread design also offers a quiet and comfortable driving experience. The sub line pitch sequence, siping detail on the tire's shoulder area, cancels out the road noise that is generated while the tires are in motion. This ensures reduced road noise levels heard in the vehicle's cabin. The directional tread block design lowers the road vibrations felt by the passengers as it closely follows the road surface in all conditions. The decreased road pattern noise and vibration levels boost the driving enjoyment.The special directional tread pattern upgrades the tire's controllability. Its excellent road gripping ability ensures maintained road contact. This stabilizes the tire against the driving forces affecting it. The better stability upgrades the steering responsiveness, which in turn enables a quick and precise steering responsiveness to the driver's instructions. This makes the tire easily controlled in all conditions.The Mach IV provides an exceptional high speed performing ability. Its reinforced internal structure features a jointless spiral overlay that maintains the tire's optimal shape against the driving pressure. The optimal tire shape boosts the high speed performing capability and ensures a safe driving experience. 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.