Chevrolet 2010 Express Bedienungsanleitung PDF herunterladen (Seite 335)

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(D) Construction Code: 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 construction; and the

letter B means belted-bias ply construction.

(E) Rim Diameter

: Diameter of the wheel in

inches.

(F) Load Range

: Load Range.

(G) Service Description: The service description

indicates the load index and speed rating of a tire.

If two numbers are given as in the example,

120/116, then this represents the load index for

single versus dual wheel usage (single/dual).

The speed rating is the maximum speed a tire is

certiﬁed to carry a load. This does not apply to

Goodyear LT225/75R16 G949 RSA and Goodyear

LT225/75R16 G933 RSD commercial truck tires;

see the dual tire and single tire maximum load and

load range letter designations on the tire sidewall.

Tire Terminology and Deﬁnitions

Air Pressure: The amount of air inside the

tire pressing outward on each square inch of

the tire. Air pressure is expressed in pounds

per square inch (psi) or kilopascal (kPa).

Accessory Weight

: This means the combined

weight of optional accessories. Some examples of

optional accessories are, automatic transmission,

power steering, power brakes, power windows,

power seats, and air conditioning.

Aspect Ratio

: The relationship of a tire’s height

to its width.

Belt

: A rubber coated layer of cords that is

located between the plies and the tread. Cords

may be made from steel or other reinforcing

materials.

Bead

: The tire bead contains steel wires wrapped

by steel cords that hold the tire onto the rim.

Bias Ply Tire

: A pneumatic tire in which the plies

are laid at alternate angles less than 90 degrees

to the centerline of the tread.

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