Letter Rating; Speed Rating; Customer Information and Reporting Safety Defects- Page 552

T115/70D16 90M is an example of a tire
size and load index rating. Here is an
explanation of the various components of
that tire size and load index rating. Note
that the tire size and load index rating may
be different from the example.

T

Indicates a tire that may be installed on
cars, SUVs, minivans and light trucks as
designated by the Tire and Rim
Association (T&RA).

115

“115” 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.

70

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

D

“D” is the tire construction symbol. D
indicates “diagonal ply construction”.

16

“16” is the wheel rim diameter in inches.

90

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

M

“M” is the speed rating. The speed rating
denotes the maximum speed for which the
use of the tire is rated.

Letter Rating

Speed Rating

M

81 mph

Customer Information and Reporting Safety Defects

Tire Information (U.S.A.)

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Mazda3_8HE9-EA-18K_Edition3

2018-11-21 14:31:58