The aspect ratio refers to the ratio between the tyres width and height of the side wall, this information is always located on the tyre, and refers to the height of the tyre wall being a percentage of the tyre width. E.G 195/65 – meaning the width is 195mm and the height is 65% of the 195mm in this case 126mm.
- The aspect ratio is calculated using this formula: (Height / Width * 100)
- To work out the Aspect: (Width * Percentage / 100).
- E.G 195/65 – meaning the width is 195mm and the height is 65%
It’s usually considered that lower aspect tyres provide better handling while larger aspect tyres provide a more comfortable drive.