Glossary Of Terms; Wheels And Tires Glossary - Fisker Karma 2012 Owner's Handbook Manual

Glossary of Terms

WHEELS AND TIRES GLOSSARY

Glossary of Terms
Accessory weight
The combined weight (in excess of those
items replaced) of items available as factory
installed equipment.
Bead
The inner edge of a tire that is shaped to fit
to the rim and form an air tight seal. The
bead is constructed of steel wires which are
wrapped, or reinforced, by the ply cords.
Cold tire pressure
The air pressure in a tire which has been
standing in excess of three hours, or driven
for less than one mile.
Curb weight
The weight of a standard vehicle, including
a full tank of fuel, any optional equipment
fitted, and with the correct fluid levels.
Gross vehicle weight
The maximum permissible weight of a
vehicle with driver, passengers, load,
luggage, and equipment.
kPa (kilo Pascal)
A metric unit used to measure pressure.
One kilo Pascal equals approximately 0.145
psi.
Maximum inflation pressure
The maximum pressure to which the tire
should be inflated. This pressure is given on
the tire side wall in psi (lbf/in
Note: This pressure is the maximum
allowed by the tire manufacturer. It is not the
pressure recommended for use.
Maximum loaded vehicle weight
The sum of curb weight, accessory weight,
vehicle capacity weight, and production
options weight.
8.20
Production options weight
The combined weight of options installed
which weigh in excess of 3 lbs (1.4 kg) more
than the standard items that they replaced,
and are not already considered in curb or
accessory weights.
PSI (lbf/in
Pounds per square inch, an imperial unit of
measure for pressure.
Rim
The metal support for a tire, or tire and tube,
upon which the tire beads are seated.
Vehicle capacity weight
The number of seats multiplied by 150 lbs
(68 kg) plus the rated amount of
load/luggage.
2
) and kPa.
Glossary of Terms
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