Tire Designations - Volvo 2008 C30 Owner's Manual

1
Optional pressure may not be used for homologation of fuel consumption or emissions.
2
Tires of this type may not be mounted on vehicles equipped with the optional self-leveling system.
172
07 Wheels and tires

Tire designations

Federal law mandates that tire manufacturers place standardized information on the sidewall of all tires (see the
illustration).
The following information is listed on the tire sidewall:
The tire designation (the following figures are examples of a tire designation):
1. 215: the width of the tire (in millimeters) from sidewall edge to sidewall edge. The larger the number, the wider the
tire.
2. 65: The ratio of the tire's height to its width.
3. R: Radial tire.
4. 15: The diameter of the wheel rim (in inches).
5. 95: The tire's load index. In this example, a load index of 95 equals a maximum load of 1521 lbs (690 kg).