Tires

Tires

A ring-shaped covering fixed around the wheel-rim of an automobile that both protects it and provides a shock-absorbant cushion to increase vehicle performance and speed.

Industry: Automotive; Rubber

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Tires

Load index

Automotive; Tires

An assigned number ranging from 0 to 279 that corresponds to the load-carrying capacity of a tire.

Speed rating

Automotive; Tires

An alphabetical code (A-Z) assigned to a tyre indicating the range of speeds at which the tyre can carry a load under specified service conditions.

Load range

Automotive; Tires

Defines a range of maximum loads that tyres can carry at a defined pressure.

Sprung weight

Automotive; Tires

The parts of a car that are supported by its springs, including the frame, engine and body.

Lug-centric

Automotive; Tires

Wheels are manufactured to fit either the hub or the lugs. Lug-centric is matching the lug holes of a custom wheel perfectly to the lug pattern of the vehicle.

Squirm

Automotive; Tires

Flexing of the tread blocks between the belt package and the road surface. Less squirm means better steering response; more squirm means worse steering response.