
A Comprehensive Guide to Understanding Car Tire Information and Markings
Car tyres usually have the following information written on them:
- Tyre brand and model: This is the name of the tyre manufacturer and the specific model of tyre.
- Tyre size: This includes the width, aspect ratio, and rim diameter of the tyre, and is usually written in a format like “205/55R16”. This information helps you select the right tyre for your vehicle.
- Load index and speed rating: These numbers indicate the maximum load the tyre can carry and the maximum speed it is rated for, respectively.
- DOT code: This is a code issued by the Department of Transportation (DOT) that identifies the manufacturer, plant, and date of production of the tyre.
- Treadwear rating: This is a number that indicates how long the tyre is expected to last compared to a standard reference tyre.
- Traction and temperature ratings: These letters indicate the tyre’s ability to stop on wet roads and its resistance to heat and degradation, respectively.
- Maximum inflation pressure: This is the maximum amount of air pressure the tyre is designed to handle.
- M+S or snowflake symbol: This indicates that the tyre is approved for use in winter conditions.
- Other symbols or markings: Depending on the tyre, there may be additional symbols or markings indicating special features like run-flat technology, reinforced sidewalls, or eco-friendly materials.
It’s important to pay attention to this information when selecting and maintaining your tyres, as it can affect the tyre’s performance, safety, and longevity.
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Credit photo: Bigotires