Most tyre manufactures label their tyre size in large text on the sidewall to make it easier to find although some tyres don’t make life so easy and even the most experienced tyre technician finds difficult to see it but if you have an idea what you are looking for then you have a better fighting chance of finding it.
The image above displays clearly the size markings and the meaning are listed beside it.
- 175 = The nominal width measured in millimeters (treaded area width)
- 65 = The aspect ratio (percentage height of the sidewall)
- R = Radial construction
- 14 = The rim/wheel size the tyre is designed to be mounted on to in Inches
- 82 = The maximum load rating (see chart below for conversion)
- T = Maximum speed rating (see chart below for conversion)
So the information required on this tyre would be 175 65 14 82 T
(The commonly used pronunciation would be “one seven five, six five, fourteen, eighty two, T)
