600 9-1. Specifications
ment test surfaces of asphalt and concrete.
A tire marked C may have poor traction performance.
Warning: The traction grade assigned to this tire is based on braking( straight ahead) traction tests and does not include cornering( turning) traction.
n Temperature A, B, C
The temperature grades are A( the highest), B, and C, representing the tire’ s resistance to the generation of heat and its ability to dissipate heat when tested under controlled conditions on a specified indoor laboratory test wheel.
Sustained high temperature can cause the material of the tire to degenerate and reduce tire life, and excessive temperature can lead to sudden tire failure.
Grade C corresponds to a level of performance which all passenger car tires must meet under the Federal Motor Vehicle Safety Standard No. 109.
Grades B and A represent higher levels of performance on the laboratory test wheel than the minimum required by law.
Warning: The temperature grades of a tire assume that it is properly inflated and not overloaded.
Excessive speed, underinflation, or excessive loading, either separately or in combination, can cause heat buildup and possible tire failure.
Glossary of tire terminology
Tire related term
Cold tire inflation pressure
Maximum inflation pressure
Recommended inflation pressure
Meaning
Tire pressure when the vehicle has been parked for three hours or more, or has not been driven more than 1 mile or 1.5 km under that condition
The maximum cold inflated pressure to which a tire may be inflated, shown on the sidewall of the tire
Cold tire inflation pressure recommended by a manufacturer