1 - U.S. DOT Safety Standards Code (TIN)
2 - Size Designation
3 - Service Description
4 - Maximum Load
5 - Maximum Pressure
6 - Treadwear, Traction and Temperature Grades
NOTE:
design standards. P-Metric tires have the letter "P" molded into the sidewall preceding the size designation.
Example: P215/65R15 95H.
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.
Tire Sizing Chart
EXAMPLE:
Example Size Designation: P215/65R15XL 95H, 215/65R15 96H, LT235/85R16C, T145/80D18 103M, 31x10.5 R15 LT
P = Passenger car tire size based on U.S. design standards, or
....blank.... = Passenger car tire based on European design standards, or
LT = Light truck tire based on U.S. design standards, or
T or S = Temporary spare tire or
31 = Overall diameter in inches (in)
215, 235, 145 = Section width in millimeters (mm)
65, 85, 80 = Aspect ratio in percent (%) - Ratio of section height to section width of tire, or
10.5 = Section width in inches (in)
R = Construction code
15, 16, 18 = Rim diameter in inches (in)
Service Description:
95 = Load Index
H = Speed Symbol
Load Identification:
Absence of the following load identification symbols on the sidewall of the tire indicates a Standard Load (SL) tire:
Maximum Load - Maximum load indicates the maximum load this tire is designed to carry
Maximum Pressure - Maximum pressure indicates the maximum permissible cold tire inflation pressure for this tire