V: 240 km/h (149 mph) – Encountered on sporty compacts and premium touring tires. For example, in the marking 225/50R17 91V, the "V" denotes the speed rating.
Tire Speed Rating Guide: Matching Premium Tires to Your Performance Needs
To handle increased rotational speeds, these tires utilize stronger ply materials, reinforced sidewalls, and advanced silica-infused tread compounds that maintain flexibility and grip under heat. Misinterpreting this symbol can lead to mismatched expectations regarding vehicle behavior at higher velocities.
Conversely, opting for a higher rating than specified is safe and provides a buffer for aggressive driving, though it may result in a stiffer ride or reduced fuel efficiency due to the additional materials used. While downgrading the rating is sometimes possible for budget-conscious drivers in low-speed environments, it is strongly discouraged for highway use.
Tire Speed Rating Guide: Choosing the Right Premium Tires
This rating is not arbitrary; it is determined through rigorous testing and directly correlates with the tire's construction, materials, and intended application. W: 270 km/h (168 mph) – Typical for high-performance luxury and sports cars.
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