A tyre speed rating indicates the maximum speed a tyre is legally approved for. You will find it at the end of the tyre's size (the list of numbers on the tyre's sidewall) always represented by a letter and usually following a number - in the following example the tyre speed rating is "V"..
Also to know is, what does 100w on a tire mean?
225/50R16 - 225mm inflated width, 50% height to width ratio, radial, 16" rim. the second part of the designation is a number and a letter, with the number being the weight rating, and the letter being the speed rating: 100W - 1764lb (800kg) + 168mph.
what does 90w mean on a tire? P 245/55R18 90W. The load index refers to the amount of weight a tire can support. As the load index increases, the maximum weight increases accordingly. Typical passenger vehicle tires have a load index of 70 to 110 (761-2,337 lbs.).
Additionally, what does the W mean on a tire?
the maximum speed rating
What is H or V rating on 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.
Related Question Answers
What does 94v mean on a tire?
load index
How do you tell if a tire is soft or hard?
How to Check the Softness & Hardness of Car Tires - Test your tire when it is at a neutral temperature.
- Place a penny into the groove of the tire tread to test the tread depth.
- Remove any dirt or stones from your tire by running the flat end of a scraper along the tire tread surface.
- Apply the base of the durometer to the tire using firm and even pressure.
What does H and T mean on tires?
As you probably already know, T tires are rated up to 118 mph and H tires are good to 130 mph.What does P mean on a tire?
(P) Service Description If there is a "P" on the sidewall, it stands for "passenger car." This refers to the U.S. (P-metric) method of tire sizing. "LT" stands for Light Truck, "ST" is for Special Trailer and "T" stands for Temporary, which is primarily used for small spare tires.What does 91t mean on a tire?
The 91H and 91T refer to the tire Load bearing index and speed rating of the tire. (Load Index 91 refers to 1356 Pounds or 615 Kilograms). Typically, the load indexes of the tires used on passenger cars and light trucks range from 70 to 110. The H and T refer to the speed rating of the tire.What does 92y mean on a tire?
After the initial tire measurement reading, we see 92Y. The 92 represents the maximum load the car can carry. The range of load ratings is vast and each number corresponds to a chart that shows how many pounds a single tire can carry. In this case, the 92 means it can support 1,389 pounds.What does R mean on a tire?
P identifies your tire as a Passenger Tire. R indicates the construction used within the tires casing. R stands for radial construction. B means belted bias and D stands for diagonal bias construction. 17 The last dimension listed in the size is the diameter of the wheel rim, which is most often measured in inches.What is T speed rating?
Speed Rating T With a maximum speed of 118 mph, you usually find tires with speed rating “T” on family sedans and minivans.What is the difference between V and W rated tires?
The system is based around the European use of kilometres, which is why speed ratings in mph are at such unusual increments. The difference between each letter is around 6mph. Confusingly, W-rated tyres are rated at a higher speed in excess of 168mph. Y-rated tyres are rated in excess of 186mph.What do the numbers mean on tire sizes?
The two-digit number after the slash mark in a tire size is the aspect ratio. For example, in a size P215/65 R15 tire, the 65 means that the height is equal to 65% of the tire's width. The bigger the aspect ratio, the bigger the tire's sidewall will be.What do the 3 numbers mean on tire size?
B: TIRE WIDTH The three-digit number following the letter is the tire's width (from side to side, looking at the tire head on) in millimeters. It's the height of the sidewall measured from wheel rim to top of the tread, expressed as a percentage of tire width. In other words, it's sidewall height divided by tire width.What does the 265 70r17 mean?
265. This number indicates that your tire has a width of 265 millimeters. 70. This number means that your tire has an aspect ratio of 70%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 70% of the width.What does 205 55r16 91v mean?
Although the label “205/55 R16 91V" doesn't say much to the tyre layman, it is really rather simple. “205" specifies the tyre's nominal width in millimetres. The number “55" refers to the nominal aspect ratio, i.e. the ratio of the tyre's height to its width.What does UTQG 700 AA mean?
Uniform Tire Quality Grading
Does tire speed rating matter?
The speed rating tells you the speed the tire can safely maintain over time. A higher speed rating usually means you will have better control and handling at higher speeds — and that the tire can take the extra heat. As a general rule, tires with higher speed ratings also handle better at slower speeds.What is the speed rating on a tire?
The speed rating tells you the speed the tire can safely maintain over time. A higher speed rating usually means you will have better control and handling at higher speeds - and that the tire can take the extra heat. As a general rule, tires with higher speed ratings also handle better at slower speeds.What is a tire speed rating of H?
S — Up to 112 mph. T — Up to 118 mph. H — Up to 130 mph. V — Up to 149 mph. W — Up to 168 mph.What does 195 65r15 91h mean?
A 195/65 R15 91H tyre has a tyre width of 195 mm, which is indicated by the first digit. In addition, its diameter is 15 inches - this is also the size of the rim on which the tyre will be mounted. Thereby the two values are known that are important for the correct rim size.Can I use T rated tires instead of H?
You will find that H rated tires have more plies on both the tread and the sidewall. The construction is very different between H and T rated tires even of the same brand and model. Don't think of it as a speed rating. Think of it as a performance rating. 
