What are the speed ratings for tires?
On the sidewall of every tire, you’ll find one of these speed rating codes:
- M – Up to 81 mph.
- N – Up to 87 mph.
- P – Up to 93 mph.
- Q – Up to 99 mph.
- R – Up to 106 mph.
- S – Up to 112 mph.
- T – Up to 118 mph.
- H – Up to 130 mph.
Can I put a higher speed rated tire on my car?
tl dr – There is absolutely no worries about putting a higher rated tire on your vehicle. It just means you can drive your car faster if the car is capable (and the speed limits will allow). You will gain nothing in any other aspect of the tire, such as tire life, treadwear, or what have you.
What is speed rating W?
A relatively new addition to the speed rating chart, tires with speed rating “W” can achieve a maximum sustained speed of 168 mph (270 kph).
What speed rating is H?
Tires with a maximum speed capability higher than 300 km/h (186 mph), require a “ZR” in the size designation….Tire Speed Rating Chart.
| SPEED SYMBOLS | ||
|---|---|---|
| U | 200 | 124 |
| H | 210 | 130 |
| V | 240 | 149 |
| W | 270 | 168 |
Do tires with higher speed ratings last longer?
Typically, the higher the speed rating, the better the grip and stopping power, but the lower the tread life. You can always increase the speed rating of the tires on your vehicle for improved performance, but can never decrease it without reducing the vehicle top speed to that of the lower speed rating selected.
What is the meaning of 175/65 R15?
175 is the width in millimetres of the tyres cross section. 65 is the Aspect Ratio, it is the ratio of the sidewall height to the cross section width. 15 inches, stands for the diameter of the wheel that the tyre is designed to fit.
What is the speed index of a tire?
The Tire Speed Index is the maximum permitted speed at which the car can drive with the specified tire type under the maximum load defined by the Tire Load Index.
What are h and V rated tires?
H-rated tires are rated for a maximum speed of 130 mph. The V rating is the next rating faster, and V-rated tires are good to 149 mph. Both H- and V-rated tires are considered to be performance-touring tires.
What is h and V speed rating?
H speed-rated tires are tested reliable at speeds up to 130mph, while V speed-rated tires are tested reliable at speeds up to 149 mph. Speed ratings are universal through all brands of tires.
Does speed rating on tires matter?
Tire Speed Rating and Why It Matters. The tire speed rating is the maximum speed tires can safely carry a load (the original weight of your vehicle plus whatever’s in it) for a sustained amount of time in ideal conditions. The rating is molded on the tire sidewall, signified by a letter or two, usually after the load index number.