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OWNER SAFETY INFORMATION
WHEEL AND TIRE GLOSSARY
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 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/in2).
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.
Production options weight The combined weight of options installed which weigh in excess of 3 lbs more than the standard items that they replaced, and are not
already considered in curb or accessory weights.
PSI (lbf/in2) Pounds per square inch, 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 plus the rated amount of load/luggage.
WHEELS AND TIRES GLOSSARY
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