Letter Rating; Speed Rating; Customer Information and Reporting Safety Defects- Page 560

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Customer Information and Reporting Safety Defects

Tire Information (U.S.A.)

P

Indicates a tire that may be installed on cars, SUVs, minivans and light trucks as designated 

by the Tire and Rim Association (T&RA).

NOTE

If your tire size does not begin with a letter this may mean it is designated by either ETRTO 

(European Tire and Rim Technical Organization) or JATMA (Japan Tire Manufacturing 

Association).

215

“215” is the nominal width of the tire in millimeters. This three-digit number gives the 

width in millimeters of the tire from sidewall edge to sidewall edge. In general, the larger 

the number, the wider the tire.

65

“65” is the aspect ratio. This two-digit number indicates the tire's ratio of height to width.

R

“R” is the tire construction symbol. R indicates “Radial ply construction”.

15

“15” is the wheel rim diameter in inches.

95

“95” is the Load Index. This two-or three-digit number indicates how much weight each tire 

can support.

H

“H” is the speed rating. The speed rating denotes the maximum speed for which the use of 

the tire is rated.

Letter Rating

Speed Rating

Q

99 mph

R

106 mph

S

112 mph

T

118 mph

U

124 mph

H

130 mph

V

149 mph

W

168

*

 mph

Y

186

*

 mph

*

  For tires with a maximum speed capability over 149 mph, tire manufacturers sometimes use the letters ZR. For 

tires with a maximum speed capability over 186 mph, tire manufacturers always use the letters ZR.

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