Compliance Certification Label- Page 239

•

Standard load:

 A class of

P-metric or Metric tires
designed to carry a maximum
load at set pressure. For
example: for P-metric tires
35 psi (2.4 bar) or 36 psi
(2.5 bar) depending on tire size
and for Metric tires 36 psi
(2.5 bar). Increasing the
inflation pressure beyond this
pressure will not increase the
tire capability.

•

Extra load:

 A class of P-metric

or Metric tires designed to carry
a heavier maximum load at
42 psi (2.9 bar). Increasing the
inflation pressure beyond this
pressure will not increase the
tire’s load carrying capability.

•

bar

 Metric unit of atmospheric

pressure.

•

kPa:

 Kilopascal, a metric unit

of air pressure.

•

PSI:

 Pounds per square inch, a

standard unit of air pressure.

•

Cold tire pressure:

 The tire

pressure when the vehicle has
been stationary and out of
direct sunlight for an hour or
more and prior to the vehicle
being driven for 1 mi (1.6 km).

•

Recommended inflation
pressure:

 The cold inflation

pressure found on the Safety
Compliance Certification Label
(affixed to either the door hinge
pillar, door-latch post, or the
door edge that meets the
door-latch post, next to the
driver seating position) or Tire
Label located on the B-Pillar or
the edge of the driver door.

•

B-pillar:

 The structural

member at the side of the
vehicle behind the front door.

•

Bead area of the tire:

 Area of

the tire next to the rim.

•

Sidewall of the tire:

 Area

between the bead area and the
tread.

•

Tread area of the tire:

 Area of

the perimeter of the tire that
contacts the road when
mounted on the vehicle.

•

Rim:

 The metal support

(wheel) for a tire or a tire and
tube assembly upon which the
tire beads are seated.

Information Contained on the
Tire Sidewall

United States of America, and
Canada Federal regulations
require tire manufacturers to place
standardized information on the
sidewall of all tires. This
information identifies and

236

Transit (TTH) Canada/United States of America, enUSA, Edition date: 03/2014, Third Printing

Wheels and Tires