*Email Address
*Password
(Password is case sensitive)
Register
Forgot Password?
 
 Advanced Search
Passenger / SUV
Light Truck
Truck
Farm / Construction
Boat / Utility Trailer
Lawn & Garden
ATV
Tubes
Wheels
Batteries
Filters
   

Load Index & Speed Ratings


Load Index & Load in lbs.

The load index is an assigned number that corresponds with the load-carring capacity of a tire. Most passenger car tire load indexes range from 75 to 100 but a few carry more.


Load Index
Load (lbs.)*
Load Index
Load (lbs.)*
71
761
91
1356
72
783
92
1389
73
805
93
1433
74
827
94
1477
75
853
95
1521
76
882
96
1565
77
908
97
1609
78
937
98
1653
79
963
99
1709
80
992
100
1764
81
1019
101
1819
82
1047
102
1874
83
1074
103
1929
84
1102
104
1984
85
1135
105
2039
86
1168
106
2094
87
1201
107
2149
88
1235
108
2205
89
1279
109
2271
90
1323
110
2337

* ONE POUND IS EQUAL TO 0.4536 kg.

 


Speed Ratings

Rating
Maximum Speed
Q
99 mph (160 km/h)
S
112 mph (180 km/h)
T
118 mph (190 km/h)
U
124 mph (200 km/h)
H
130 mph (210 km/h)
V
149 mph (240 km/h)
W
168 mph* (270 km/h)
Y
186 mph* (300 km/h)
 
*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.

Examples:

Tire Designation Max. Speed
P225/50ZR16 Above 149 mph (240 km/h)
P275/40ZR17 93W 168 mph (270 km/h)
P275/40ZR17 93Y 186 mph (300 km/h)


Consult the tire manufacturer for maximum speed when there is no service description.