508
For U . S . A .
13-1 . For U . S . A .
S13AA
The following information has been compiled according to Code of Federal Regulations “ Title 49 , Part 575 ”.
13-2 . Tire information
S13AB
& Tire labeling
S13AB01
Many markings ( e . g . Tire size , Tire Identification Number or TIN ) are placed on the sidewall of a tire by tire manufacturers . These markings can provide you with useful information on the tire .
! Tire size
S13AB0101
Your vehicle comes equipped with P-Metric tire size . It is important to understand the sizing system in selecting the proper tire for your vehicles . Here is a brief review of the tire sizing system with a breakdown of its individual elements .
! P Metric
S13AB010101
With the P-Metric system , Section Width is measured in millimeters . To convert millimeters into inches , divide by 25.4 . The Aspect Ratio ( Section Height divided by Section Width ) helps provide more dimensional information about the tire size .
Example :
( 1 ) P = Certain tire type used on light duty vehicles such as passenger cars
( 2 ) Section Width in millimeters
( 3 ) Aspect Ratio (= section height 7 section width ).
( 4 ) R = Radial Construction ( 5 ) Rim diameter in inches
! Load and Speed Rating Descriptions
S13AB010102
The load and speed rating descriptions will appear following the size designation .
They provide two important facts about the tire . First , the number designation is its load index . Second , the letter designation indicates the tire ’ s speed rating .