Passenger Technical Data

What is a Load Index

What are Speed Symbols

What do the sidewall markings on a tyre mean

Need technical data regarding commercial vehicle tyres Click here!

All dimensions quoted refer to a new tyre on a measuring with the tyre inflated. Following are useful terms:

A. Section Width:
Total inflated width of the tyre at the widest point, excluding curving ribs and lettering. Note - When a tyre is fitted to a wider or a narrower rim than the measuring rim, the section width will change by approximately 5 mm for each 0.5" change in rim width.

B. Section Height:
The height of tyre bead to crown.

C. Overall Diameter:
The diameter of a new tyre fitted and inflated on a rim in an unloaded condition i.e. off the vehicle.

D. Static Loaded Radius:
The distance between wheel center and road surface with the tyre loaded.