The speed difference between each letter is therefore usually 10km/h or approximately 6mph. Wider, larger-diameter tyres often feature higher speed ratings as 13 Mar 2017 The modern speed rating system uses letters from A-Z, with each letter relating to a specific speed. Generally, a tyre rated 'L' is designed for a Most passenger car tyre load indexes range from 62 to 126. The Speed Index is an assigned letter ranging from J to Z that corresponds to the reference 6 Mar 2019 The alphabet soup on tires' sidewalls can be off-putting, but it's pretty easy The letter W denotes the maximum speed rating, which translates Each of these digits and letters has a specific meaning regarding the size of your tire, but the final letter is your tires' speed rating. Your Tire Maintenance Needs. In

## R indicates the construction used within the tires casing. The load index and speed rating, or service description, are the numbers that follow the tire size. In the the tire's load index and the single letter (V) identifies the tire's speed rating.

The letter is the speed rating, or the maximum speed the tire is built for. safely carry 1,323 pounds and travel at 106 mph. Consult a load and speed index to find out what your tire’s Get down to eye level with your tires, and you may notice the hieroglyphic-like sequence of letters and numbers imprinted into each sidewall. The numbers and letters at the end of the sequence that you see on your sidewall correspond to what’s called the “tire service description” — three or 4 figures that signify both the tire load index and the tire speed rating. It’s your tire speed rating, or, to be more accurate, your tire’s performance rating. People refer to that last letter of the tire size on the sidewall of your tires as ‘tire speed rating’—the maximum speed a tire can sustain for a certain period of time without risk of tire failure. But it’s not just about speed. 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. Today’s speed rating system uses letters A through Z. Each letter corresponds to a specific speed. In general, that speed goes up as the rating advances alphabetically. For example, a tire rated “L” is good for a lower maximum sustained speed than one rated “N.” But the tire speed rating system isn’t without its quirks. To understand the speed restriction of a Z speed rated tire, refer to the additional speed rating adjacent to the load index. In the case of a Z tire, the speed rating will either be W, Y, or (Y). Is there a tire speed symbol or code? The tire speed rating is expressed as a letter adjacent to the tire's load index.

### 14 Sep 2018 The speed ratingis marked on the side of the tyre with letters and numbers. Any planned change of tyres should correspond with the speed

The tyre speed rating will be the final letter, found after the wheel size details. For example, if your tyre reads 255/55 R 16 91V, then your tyre speed rating is ‘V’. Tyre speed ratings are shown by a letter of the alphabet, with each letter representing a different top speed. The below table shows the max speed for each speed rating: The letter is the speed rating, or the maximum speed the tire is built for. safely carry 1,323 pounds and travel at 106 mph. Consult a load and speed index to find out what your tire’s Get down to eye level with your tires, and you may notice the hieroglyphic-like sequence of letters and numbers imprinted into each sidewall. The numbers and letters at the end of the sequence that you see on your sidewall correspond to what’s called the “tire service description” — three or 4 figures that signify both the tire load index and the tire speed rating. It’s your tire speed rating, or, to be more accurate, your tire’s performance rating. People refer to that last letter of the tire size on the sidewall of your tires as ‘tire speed rating’—the maximum speed a tire can sustain for a certain period of time without risk of tire failure. But it’s not just about speed. 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. Today’s speed rating system uses letters A through Z. Each letter corresponds to a specific speed. In general, that speed goes up as the rating advances alphabetically. For example, a tire rated “L” is good for a lower maximum sustained speed than one rated “N.” But the tire speed rating system isn’t without its quirks. To understand the speed restriction of a Z speed rated tire, refer to the additional speed rating adjacent to the load index. In the case of a Z tire, the speed rating will either be W, Y, or (Y). Is there a tire speed symbol or code? The tire speed rating is expressed as a letter adjacent to the tire's load index.