Uniform Tire Quality Grading Standards - Definition of terms for tires and loading - Wheels and tires - Mercedes-Benz S-Class Owners Manual - Mercedes-Benz S-Class | Mersag.com

Uniform Tire Quality Grading Standards

Mercedes-Benz S-Class / Mercedes-Benz S-Class Owners Manual / Wheels and tires / Definition of terms for tires and loading / Uniform Tire Quality Grading Standards

A uniform standard to grade the quality of tires with regards to tread quality, tire traction and temperature characteristics. Ratings are determined by tire manufacturers using U.S.

government testing procedures. The ratings are molded into the sidewall of the tire.

See also:

Bead
The tire bead ensures that the tire sits securely on the wheel. There are several steel wires in the bead to prevent the tire from coming loose from the wheel rim. ...

M+S tires
At temperatures below 45 °F(+7 °C), use winter tires or all-season tires. Both types of tire are identified by the M+S marking. Only winter tires bearing the snowflake symbol in addition to ...

GAWR (Gross Axle Weight Rating)
The GAWR is the maximum permissible axle weight. The actual load on an axle must never exceed the gross axle weight rating. The gross axle weight rating can be found on the vehicle identificat ...