What are tire speed ratings?

Tire speed ratings indicate the maximum safe speed at which a particular tire can operate. They are determined through rigorous testing procedures conducted by the tire manufacturers and are based on factors such as tread design, construction, and materials used.

Speed ratings are represented by letters of the alphabet, each corresponding to a specific speed range. The most common ratings are:

S: Indicates a maximum speed of 112 mph (180 kph)

T: Indicates a maximum speed of 118 mph (190 kph)

H: Indicates a maximum speed of 130 mph (210 kph)

V: Indicates a maximum speed of 149 mph (240 kph)

W: Indicates a maximum speed of 168 mph (270 kph)

Y: Indicates a maximum speed of 186 mph (300 kph)

Some performance tires may have higher speed ratings, such as ZR (over 149 mph/240 kph) or Z (over 155 mph/250 kph).

It's important to ensure that the tires on your vehicle are rated for a speed equal to or higher than the maximum speed you intend to drive. Using tires with a speed rating lower than the vehicle's maximum speed can be dangerous, as the tires may not be able to handle the forces and heat generated at higher speeds.