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What Is Tyre Aspect Ratio

The tyre aspect ratio is a crucial factor in vehicle performance. It defines how the tire’s height relates to its width. A higher aspect ratio improves comfort, while a lower ratio enhances handling. Proper selection of this ratio is essential for vehicle stability.

  • 11 Apr 2025
  • 3 min read
  • 8 views

The tire aspect ratio is a critical dimension of a vehicle's tire that significantly impacts its performance and characteristics. It represents the relationship between the height and width of the tire's sidewall. You must understand the aspect ratio is crucial as it influences the tire's handling, ride comfort, and overall performance. Read on to learn more about what is a tyre aspect ratio.

 

Meaning of Tyre Aspect Ratio

Listed below are the key features of tyre aspect ratio:

  • Aspect Ratio Percentage:

    The tire's aspect ratio is expressed as a percentage, representing the section height relative to the width.
  • Section Height:

    A tire's section height is the distance from the tire's inner rim to the outer tread surface.
  • Section Width:

    It is the width of the tire, typically measured in millimetres.
  • Calculation:

    To calculate the section height, multiply the aspect ratio percentage by the width. For example, with a 70% aspect ratio and a section width of 185mm, the section height would be 70% of 185mm and 129.5mm.
  • Impact on Tire Sidewall:

    The aspect ratio significantly influences the height of the tire's sidewall. A higher aspect ratio produces a taller sidewall, while a lower aspect ratio yields a shorter sidewall.
  • Performance Implications:

    The aspect ratio affects several aspects of tire performance, including ride comfort, handling, and the tire's ability to absorb road irregularities.
  • Customization:

    Some drivers may choose tires with specific aspect ratios to customise their vehicle's performance characteristics to their preferences.

 

Conclusion

If you were pondering the question “What is tyre aspect ratio?”, we hope this article has helped. It is a crucial dimension that indicates the relationship between the height and width of a tire's sidewall. hen selecting tyres for your vehicle it’s essential to ensure that you buy the correct aspect ratio as specified by the manufacturer to ensure safe driveability. Ensuring the correct tyre aspect ratio helps maintain vehicle stability and reduces the risk of accidents, which can lead to fewer car insurance claims.


Disclaimer: The information provided in this blog is for educational and informational purposes only. It may contain outdated data and information regarding the relevant industry. It is advised to verify the relevance of the data and information before taking any major steps. ICICI Lombard is not liable for any inaccuracies or consequences resulting from the use of this outdated information

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