Glossary “tire waddle” Definition:
The side-to-side movement at the front and/or rear of the vehicle caused by the steel belt not being straight within the tire. This is most noticeable at low speeds of 5 to 30 mph (8 to 48.3 km/hr).

Glossary “tire wear pattern” Definition:
Term for wear pattern.

Glossary “tire valve stem” Definition:
Term used for valve stem.

Glossary “tire speed rating” Definition:
A tire rating that specifies the speed at which the tire can be safely used and does not suggest that a vehicle can be driven safely at the designated speed, because of various road and weather conditions that may be encountered. Also the condition of the vehicle may affect high-speed operation.

Glossary “tire stagger” Definition:
Providing different size tires on each side of the axle of an oval-track race car to compensate for all left turns.

Glossary “tire tramp” Definition:
Term used for wheel tramp.

Glossary “tire tread” Definition:
Term used for tread.

Glossary “tire trueing” Definition:
Procedure of “rounding” a tire by removing rubber so the tread face forms a true circle. This is done by removing high-tread areas while revolving the tire.

Glossary “tire runout” Definition:
The lateral runout and radial runout of a tire.

Glossary “tire scrub” Definition:
The sliding of a tire at an angle to the direction that it is pointed.

Glossary “tire shimmy” Definition:
An out-of-balance condition called wheel shimmy.

Glossary “tire sidewall” Definition:
That area of the tire between the “bead” and the “tread pattern” made from an abrasive-resistant blend of rubber, which absorbs shocks and impacts from road irregularities and prevents damage to the plies.

Glossary “tire rotation” Definition:
Swapping tires around to various positions, as prescribed by the tire manufacturer, on the vehicle to equalize tire wear.

Glossary “tire rolling diameter” Definition:
Diameter of a tire measured from the contact point to the top of the tire through the center line of the spindle.

Glossary “tire purposes” Definition:
Term used for tire functions.

Glossary “tire rim” Definition:
Term used for wheel rim.

Glossary “tire plug” Definition:
Piece of rubber vulcanized into a hole in a tire.

Glossary “tire pressure gauge” Definition:
Instrument that will accurately measure tire air pressure.

Glossary “tire profile” Definition:
Profile of a tire is based on the width and height of a cross section of the tire determined by an aspect ratio equal to the section height divided by the section width.

Glossary “tire pucker” Definition:
Tire tread that has pulled up on the edges due to mounting on a too-narrow wheel.