Tire Size - Cadillac 2010 DTS Owner's Manual

(F) Tire Ply Material The type of cord and
:
number of plies in the sidewall and under
the tread.
(G) Single Tire Maximum Load
that can be carried and the maximum pressure
needed to support that load when used as a
single. For information on recommended tire
pressure see Inflation - Tire Pressure on
page 6 59.

Tire Size

The following illustration shows an example of a
tire size.
(A) 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 tire section width in millimeters from sidewall
to sidewall.
Maximum load (C) Aspect Ratio
:
indicates the tire height to width measurements.
For example, if the tire size aspect ratio is 60, as
shown in item C of the illustration, it would mean
that the tire's sidewall is 60 percent as high as it
is wide.
(D) Construction Code
indicate the type of ply construction in the tire.
The letter R means radial ply construction; the
letter D means diagonal or bias ply construction;
and the letter B means belted bias ply
construction.
(E) Rim Diameter
inches.
(F) Service Description
represent the load index and speed rating of the
tire. The load index represents the load carry
capacity a tire is certified to carry. The speed
rating is the maximum speed a tire is certified to
carry a load.
I n f o r m a t i o n P r o v i d e d b y :
The three digit number indicates
:
A two digit number that
:
A letter code is used to
:
Diameter of the wheel in
:
These characters
:
6-55