American Roadstar Sport A/S 275/40ZR21 275/40R21 109Y XL High Performance All Season Tire

American Roadstar Sport A/S

OVERVIEW

The American Roadstar Sport A/S is a performance and high performance, all season tire made for passenger vehicles and SUVs. American Roadstar offers a 40,000 mile treadwear warranty with this model.

Better dry, wet, and winter grip is guaranteed with this model. The optimized tread design keeps the surface contact in versatile weather conditions, while the all season compound maintain flexibility in warm and cold temperatures. They increase dry, wet, and winter-weather traction. On the other hand, wide grooves prevent hydroplaning. They eliminate water and slush from the footprint, in order to protect the tire against slipping in wet situations.

High speed durability is ensured with this tire. This tire upgrades its high speed durability. The optimal tread design can easily follow the road surface, while the strong construction maintains the optimal tire shape under pressure. Also, the heat-resistant compound prevents pressure accumulation along the tread area. This combination guarantees excellent high speed performance.

The controllability and maneuvering are improved with better road contact. The asymmetric tread design maintains surface contact at all times. In other words, it upgrades steering responsiveness and driving stability. Quick and precise steering responses are guaranteed, while the structure is stabilized. In other words, it makes sure the tire is constantly under the vehicle's control.

The American Roadstar Sport A/S manages to keep the noise low. The optimized tread elements manage to decrease road noise levels. This pattern negates the sound waves created during the performance. This prevents road disturbances from ruining the passengers' driving enjoyment, guaranteeing a quiet performance.

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.