(C) Aspect Ratio: A two-digit number that indicates the
tire height-to-width measurements. For example, if the
tire size aspect ratio is “70,” as shown in item “C” of the
illustration, it would mean that the tire’s sidewall is 70%
as high as it is wide.
(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) Service Description: These characters represent
the load range and the speed rating of a tire. The load
range represents the load carrying capacity a tire is
certified to carry. The load index can range from 1 to 279.
The speed rating is the maximum speed a tire is certified
to carry a load. Speed ratings range from “A” to “Z”.
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.
Cold Inflation Pressure: The amount of air pressure
in a tire, measured in pounds per square inch (psi)
before a tire has built up heat from driving.
See Inflation - Tire Pressure on page 5-62.
5-58
Содержание 2004 Corvette
Страница 5: ...These are some examples of symbols you may find on your vehicle v ...
Страница 6: ...Model Reference This manual covers these models Z06 Coupe Convertible vi ...
Страница 116: ...Instrument Panel Overview 3 2 ...
Страница 254: ...Engine Compartment Overview When you open the hood you will see the following 5 12 ...
Страница 356: ...Engine Drive Belt Routing 6 14 ...
Страница 358: ...Maintenance Record cont d Date Odometer Reading Serviced By Maintenance I or Maintenance II Services Performed 6 16 ...