265
Car care
Uniform Tire Quality Grading (UTQG):
Tire manufacturers are required to grade
tires based on the performance factors:
treadwear, traction and temperature resis-
tance. For more information see “Uniform
Tire Quality Grading” on page 261.
Maximum Cold Inflation Load Limit: Max-
imum load that can be carried and the max-
imum pressure needed to support that load.
For information on recommended tire pres-
sure see “Recommended lowest tire pres-
sure, cold tires” on page 306 and “Loading
Your Vehicle” on page 267.
Tire Size
The following illustration shows an example
of a typical passenger car tire size.
Tire Width: The three-digit number indi-
cates the tire section width in millimeters
from sidewall to sidewall.
Aspect ratio: A two-digit number that indi-
cates the tire height-to-width measure-
ments. For example, if the tire size aspect
ratio is “55”, as shown in item “C” of the illus-
tration, it would mean that the tire´s sidewall
is 55% as high as it is wide.
Belt Rating: A 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 ply con-
struction; and the letter “B” means belted-
bias ply construction.
Rim Diameter: Diameter of the wheel in
inches.
Load range: The load range represents the
load carry capacity a tire is certified to carry.
Speed Rating: The maximum speed that a
tire is certified to carry a load. Speed ratings
range from “A” to “Z”.
215 / 55 R
16 93
H
|
|
|
|
|
|
a
b
c
d
e
f
a Tire Width
b Aspect Ratio
c Belt Rating
d Rim diameter
e Load range
f Speed rating
93U SM 06.book Page 265 Friday, February 18, 2005 1:15 PM
Содержание 2006 9-3 Remote Starter
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