What Does 95W Mean on a Tire?
The “95W” on a tire indicates the tire’s load index and speed rating. The load index is the number 95, which corresponds to a specific maximum load capacity the tire can safely carry.
The letter W is the speed rating, meaning the tire is rated for a maximum speed of 168 mph.
Understanding the Load Index
The load index is a numerical code that ranges from 0 to 150 and represents the maximum weight a tire can support when properly inflated. This index is based on standards set by the U.S. Tire and Rim Association. The number 95 corresponds to a load capacity of 1,521 pounds per tire.
To put this in perspective, imagine you have a midsize sedan. If the maximum load capacity of the vehicle is around 6,000 pounds (including passengers and cargo), then tires with a load index of 95 would be suitable.
That’s because four tires with a load index of 95 can collectively support up to 6,084 pounds (1,521 pounds per tire x 4 tires).
Deciphering the Speed Rating
The letter W in 95W is the tire’s speed rating. Tires with a W rating are designed to safely handle speeds up to 168 mph under optimal conditions.
However, it’s important to note that this doesn’t mean you should drive at those speeds. Speed ratings are determined under controlled test conditions, not on public roads.
Other common speed ratings include S (112 mph), T (118 mph), H (130 mph), V (149 mph), and Y (186 mph). It’s crucial to choose tires with a speed rating that matches or exceeds your vehicle’s top speed to ensure safe handling.
Putting It All Together
When shopping for tires, you’ll see the load index and speed rating together, like 95W, on the tire’s sidewall. This information helps you choose tires that are appropriate for your vehicle’s size, weight, and performance capabilities.
For example, if you have a high-performance sports car, you might need tires with a higher speed rating to accommodate the vehicle’s potential top speed.
On the other hand, if you drive a heavy SUV or pickup truck, you’ll want tires with a higher load index to support the vehicle’s weight safely.
Conclusion
Understanding what 95W means on a tire is essential for making informed decisions about tire replacements.
The load index (95) tells you the maximum weight each tire can support, while the speed rating (W) indicates the tire’s maximum speed capability under optimal conditions.
By choosing tires with the appropriate load index and speed rating for your vehicle, you can ensure a safe and comfortable ride.
Meet Caitlin McCormack, a Tire Size Expert and Blogger Passionate About Everything Related to Tires. With Years of Experience in the Tire Industry, Caitlin Has Become an Expert in Tire Sizes and Their Impact on Vehicle Performance.