What is a Tire's Aspect Ratio?

Aspect ratio is a key marking on the side of a tire that indicates the height of its sidewall. It is expressed as a percentage of the tire's width and typically ranges from 35 to 55 percent. Low aspect ratio tires have shorter sidewalls, which provide better handling, but also result in a harsher ride quality. Conversely, taller sidewalls are softer and provide more cushioning, but can make cornering at higher speeds more difficult. Aspect ratio also impacts the maximum speed capability of your tires, so it's important to choose one that suits your driving style and vehicle type. For vehicles used primarily for highway driving, taller aspect ratios are usually recommended as they provide a smoother ride. However, lower aspect ratios may be preferable for performance applications where maximum grip is desired.

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