Whatever speed you’re going, you want to know that your tires can keep up in safety and performance. The tire speed rating symbols on the sides of your tires reflect the maximum tire speed your tire is designed to handle.

Tire Speed Symbol Maximum Tire Speed (mph) Vehicle Type
A1 3  
A2 6  
A3 9  
A4 12  
A5 16  
A6 19  
A7 22  
A8 25  
B 31  
C 37  
D 40  
E 43  
F 50  
G 56  
J 62  
K 68  
L 75 Off-Road & Light Truck Tires
M 81 Temporary Spare Tires
N 87 Temporary Spare Tires
P 94  
Q 100 Studless & Studdable Winter Tires
R 106 H.D. Light Truck Tires
S 112 Family Sedans & Vans
T 118 Family Sedans & Vans
U 124  
H 130 Sport Sedans & Coupes
V 149 Sport Sedans, Coupes & Sports Cars
Z over 149 Sport Sedans, Coupes & Sports Cars
W 168 Exotic Sports Cars
(W) over 168 Exotic Sports Cars
Y 186 Exotic Sports Cars
(Y) over 186 Exotic Sports Cars

The tire speed rating is the last symbol on your tire spec. The other numbers represent the section width, aspect ratio, radial construction, rim diameter and load index, followed by the tire speed rating symbol.

205/60R15 91V
205 = Section Width in Millimeters
60 = Aspect Ratio
R = Radial Construction
15 = Rim Diameter in Inches
91 = Load Index
V = Speed Symbol

What Tire Speed Rating Do I Need?

Tire speed ratings vary depending on your type of vehicle, tire size and dimensions, road conditions and load bearing limitations. For the best control and the safest driving experience, make sure to check the recommended speed rating outlined by your vehicle’s manufacturer (usually found in your owner’s manual or door placard). Choose tires that are the recommended tire speed rating, or a faster tire speed rating, but never a slower one.

When selecting your tire speed rating, another consideration is tread wear. Generally, tires with higher speed ratings are made with a more aggressive rubber compound, which can reduce the overall life of the tread, and therefore the tire.

Tire Load Index

The tire load index is determined by the maximum load carrying capacity of the tire. Each tire is designed to handle a specific load and should meet or exceed the OEM tire load ratings. Below is a list of the tire load index table and the maximum weight for each load index.

Tire Load Index Pounds Kilograms
71 761 345
72 783 355
73 805 365
74 827 375
75 853 387
76 882 400
77 908 412
78 937 425
79 963 437
80 992 450
81 1019 462
82 1047 475
83 1074 487
84 1102 500
85 1135 515
86 1168 530
87 1201 545
88 1235 560
89 1279 580
90 1323 600
91 1356 615
92 1389 630
93 1433 650
94 1477 670
95 1521 690
96 1565 710
97 1609 730
98 1653 750
99 1709 775
100 1764 800
101 1819 825
102 1874 850
103 1929 875
104 1984 900
105 2039 925
106 2094 950
107 2149 975
108 2205 1000
109 2271 1030
110 2337 1060

Find your tires online for your car or truck at Firestone Complete Auto Care.

Call or visit one of our Firestone Complete Auto Care stores for more information. With more than 2,200 locations, you’re never far away from a Firestone Complete Auto Care Tire and Auto Service professional.

FIND THE TIRE THAT'S RIGHT FOR YOU Firestone is proud to carry the world’s best tire brands.
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