TIRE SPEED-RATING SYSTEM

LOAD INDEX

SPEED RATING SYMBOL                   LOAD INDEX & LOAD IN LBS.

 

RATING

SYMBOL

SPEED

(KM/H)

SPEED

MPH

 

LOAD

INDEX

LOAD

(LBS)*

LOAD

INDEX

LOAD

(LBS)*

B

50

31

 

65

639

85

1135

C

60

37

 

66

661

86

1168

D

65

40

 

67

677

87

1201

E

70

43

 

68

694

88

1235

F

80

50

 

69

716

89

1279

G

90

56

 

70

739

90

1323

J

100

62

 

71

761

91

1356

K

110

68

 

72

783

92

1389

L

120

75

 

73

805

93

1433

M

130

81

 

74

827

94

1477

N

140

87

 

75

852

95

1521

P

150

94

 

76

882

96

1565

Q

160

100

 

77

908

97

1609

R

170

106

 

78

937

98

1653

S

180

112

 

79

963

99

1709

T

190

118

 

80

992

100

1764

U

200

124

 

81

1019

101

1819

H

210

130

 

82

1047

102

1874

V

240

149

 

83

1074

103

1929

*Z

Over 240

Over 149

 

84

1102

104

1984

Note: Consult the manufacture for maximum speed.  The rating system shown above indicates the top speed for which a tire is certified.  It does not indicate the total performance capability of a tire.

*One pound is equal to .4536 kg.  The load index is an assigned number that corresponds with the load-carrying capacity of a tire.  Most passenger car tire load indexes range from 75 to 100 but a few carry more.

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