Tire Terminology And Definitions; Accessory Weight; Belt; Bead - Cadillac SRX Owner's Manual

Diameter of
the wheel in inches.
characters represent the load
index and speed rating of the
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.
The amount of
air inside the tire pressing
outward on each square inch
of the tire. Air pressure is
expressed in kPa (kilopascal)
or psi (pounds per square inch).
combined weight of optional
accessories. Some examples
These
of optional accessories are
automatic transmission, power
steering, power brakes, power
windows, power seats, and air
conditioning.
of a tire's height to its width.
A rubber coated layer of
cords between the plies and
the tread. Cords may be made
from steel or other reinforcing
materials.
The tire bead contains
steel wires wrapped by steel
cords that hold the tire onto
the rim.
The
in which the plies are laid at
alternate angles less than
90 degrees to the centerline of
the tread.
amount of air pressure in a tire,
measured in kPa (kilopascal)
The relationship or psi (pounds per square inch)
before a tire has built up heat
from driving. See
motor vehicle with standard and
optional equipment including the
maximum capacity of fuel, oil,
and coolant, but without
passengers and cargo.
A pneumatic tire
The
.
The weight of a