Haida HD927SP. FEATURES AND BENEFITS: All weather traction; High speed controllability; High driving comfort levels; . OVERVIEW: The Haida HD927SP is a high performance, all season tire manufactured for passenger vehicles and SUVs.The tire improves the all weather traction. It combines the all season compound and the asymmetric tread design to boost the dry, wet and winter weather grip on the road surface. The compound keeps the rubber flexibility in versatile temperatures, boosting the summer and winter traction. On the other hand, the notch placement and the rib pattern enhance the surface grip during the drive. The circumferential grooves prevent hydroplaning by dispersing water and slush from the footprint in wet weather conditions. This results in a safer year round performance.The asymmetric tread design also guarantees excellent high speed controllability. The ribbed pattern maintains the road contact in order to boost the steering responsiveness and the driving stability. The closed shoulder pattern helps to improve the cornering ability, by providing additional biting edges to grip the road during maneuvering. The ribbed pattern's angled notch placement manages to create friction during braking, which helps to decrease the braking distance. This combination, plus the tire's heat resistance and durable structure, enables the model to securely perform at high speeds. The compound avoids heat build-up, while the tread design and the structure keep the ideal tire shape, which ensures the tire's durable high speed performing ability.The HD827Sp upgrades the comfort levels as well. The tread design's closed shoulder pattern prevents road noise formations. The tread prevents airwaves from entering the footprint. As a result, the airwaves cannot come into contact with the tread elements, which actively avoids sound wave formations. This prevents sound waves from reaching the vehicle's cabin and ruining the passengers' driving enjoyment. 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.