understanding tyre codes

Which tyre do I need?

Every tyre has a unique code which corresponds to the tyre width, measured in mm, its tyre height, which is measured as a percentage of the width, and its rim diameter, measured in inches. There are other additional measurements if you require a specialist tyre but generally the first three make up your tyre code.


To check what tyre code you require, check your tyre or your owner’s manual.