For a tire, what does a speed rating of 'H' signify?

A speed rating of 'H' indicates that the tire has been tested and is rated for a maximum speed of 130 mph (or 210 km/h). This rating is important for safety and performance, as it assures drivers that the tire can handle high speeds without compromising stability, handling, or durability. Choosing a tire with the correct speed rating is crucial for the type of driving a vehicle will be subjected to, ensuring that the tires perform optimally under the expected conditions.

The ratings are established through rigorous testing by tire manufacturers and industry standards organizations, and each letter correlates to a specific speed capability. In this case, 'H' is categorized specifically for speeds up to 130 mph, making it suitable for various vehicles that require performance at higher velocities, as found in many sedans and some sporty models.