•
Traction:
The traction grades, from highest to lowest are AA, A, B,
and C. The grades represent the tire’s ability to stop on wet pavement
as measured under controlled conditions on specified government test
surfaces of asphalt and concrete. A tire marked C may have poor
traction performance.
•
Temperature:
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.
13.
Maximum Permissible Inflation Pressure:
Indicates the tire
manufacturers’ maximum permissible pressure and/or the pressure at
which the maximum load can be carried by the tire. This pressure is
normally higher than the manufacturer’s recommended cold inflation
pressure which can be found on the Safety Compliance Certification
Label or Tire Label which is located on the B-Pillar or the edge of
the driver’s door. The cold inflation pressure should never be set
lower than the recommended pressure on the vehicle label.
The tire suppliers may have additional markings, notes or warnings such
as standard load, radial tubeless, etc.
Additional information contained on the tire sidewall for “LT” type
tires
“LT” type tires have some additional
information beyond those of “P”
type tires; these differences are
described below.
Note:
Tire Quality Grades do not
apply to this type of tire.
1.
LT:
Indicates a tire, designated
by the Tire and Rim Association
(T&RA), that is intended for
service on light trucks.
2.
Load Range/Load Inflation
Limits:
Indicates the tire’s
load-carrying capabilities and its
inflation limits.
3.
Maximum Load Dual lb. (kg) at psi (kPa) cold:
Indicates the
maximum load and tire pressure when the tire is used as a dual;
defined as four tires on the rear axle (a total of six or more tires on
the vehicle).
2009 B-Series
(mbs)
Owners Guide, 1st Printing
USA
(fus)
Tires, Wheels and Loading
132