Operation Manual

Vehicle care and maintenance

7-19

● Cord: the strands forming the plies in the tire.

● Rim: a metal support for a tire or a tire and tube assembly

upon which the tire beads are seated.

● Rim diameter: nominal diameter of the bead seat.

● Groove: the space between two adjacent tread ribs.

Tire Markings

Size Designation

EXAMPLE:P215/65R15

OTE

● European/Japanese metric tire sizing is based on

European/Japanese design standards. Tires designed

to these standards have the tire size molded into the

sidewall beginning with the section width. The letter

“P” is absent from this tire size designation. Exam-

ple: 215/65R15 96H.

● LT (Light Truck) -metric tire sizing is based on

U.S.A. design standards. The size designation for

LT-metric tires is the same as for P-metric tires

except for the letters “LT” that are molded into the

sidewall preceding the size designation. Example:

LT235/85R16.

Passenger car tire size based on U.S.A. design

standards

215 Section width in millimeters (mm.)

Aspect ratio in percent (%)

Ratio of section height to section width of tire.

Construction code

• “R” means radial construction.

• “D” means diagonal or bias construction.

15 Rim diameter in inches (in)

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