Tire Designations; Tire Terminology And Definitions - Cadillac 2011 Escalade Owner's Manual

(G) Maximum Cold Inflation
Load Limit Maximum load
:
that can be carried and the
maximum pressure needed
to support that load. For
information on recommended
tire pressure see Tire Pressure
on page 10 52 and Vehicle Load
Limits on page 9 24.

Tire Designations

Tire Size
The following examples show
the different parts of a tire size.
Passenger (P Metric) Tire
(A) Passenger (P Metric) Tire
The United States version of a
metric tire sizing system. The
letter P as the first character in
the tire size means a passenger
vehicle tire engineered to
standards set by the U.S. Tire
and Rim Association.
(B) Tire Width The three digit
:
number indicates the tire section
width in millimeters from
sidewall to sidewall.
(C) Aspect Ratio
:
number that indicates the tire
height to width measurements.
For example, if the tire size
aspect ratio is 75, as shown
in item C of the light truck
(LT Metric) tire illustration, it
would mean that the tire's
sidewall is 75% as high as it
is wide.
(D) Construction Code
letter code is used to indicate
the type of ply construction in
the tire. The letter R means
:
radial ply construction; the
letter D means diagonal or bias
I n f o r ma t i o n P r o v i d e d b y :
ply construction; and the
letter B means belted bias ply
construction.
(E) Rim Diameter
the wheel in inches.
(F) Service Description
characters represent the load
index and speed rating of the
A two digit tire. The load index represents
the load carrying capacity a tire
is certified to carry. The speed
rating is the maximum speed a
tire is certified to carry a load.
Tire Terminology and
Definitions
Air Pressure
of air inside the tire pressing
A
:
outward on each square inch
of the tire. Air pressure is
expressed in kPa (kilopascal)
or psi (pounds per square inch).
Vehicle Care 10-49
Diameter of
:
These
:
The amount
: