What does 88t mean on a tire

The most common tire speed ratings, speeds and vehicle usage are as follows:. Tire speed ratings range from A the lowest to Y the highest. But the chart is not completely in alphabetical order. As manufacturers continue to add speed to their vehicles, tire speed ratings evolve to match the speeds.

What do the numbers on tires mean? The tire size is just one small piece of this code. Read on to learn how to crack the tire code with this handy guide dedicated to tire types, sizes, and construction. Tire service type ratings Most tire sizes begin with one or more letters — for example, P or LT. The letter tells us what type of vehicle or service the tire was designed for. Euro-Metric sizes are equivalent to P-Metric sizes in dimensions, but Euro-Metric sizes have subtle differences in their load-carrying ratings and capabilities. These tires are designed for use on vehicles used to tow trailers or carry heavy loads.

What does 88t mean on a tire

Tyre speed ratings tell you the maximum speed that particular tyre is legally approved for. Speed ratings are based on laboratory tests in which the tyre is run at 6. To receive its rating it must demonstrate that it can sustain a particular speed when tested with simulated loads. The speed rating is represented by a letter — A being the lowest and Y being the highest. As you will see on the chart below, there are some anomalies as car manufacturers have increases the speeds of their vehicles and speed ratings have been introduced to match them. A higher speed rating generally offers better grip and stopping power, but it may have a lower tread life and reduced performance in cold weather. This is to prevent a potential oversteer scenario. Bear in mind that all tyres must be appropriate for the vehicle and you should drive no faster than your lowest rated tyres. We would always recommend that the same size and type of tyre, with the same speed ratings, are fitted on all tyres. Tyre speed ratings. What is the meaning behind the speed rating? Where do I find the tyre speed rating?

Weight and air pressure ratings are normally on sidewalls, too.

Forums New posts Search forums. Media New media New comments Search media. What's new New posts New media New media comments Latest activity. Log in Register. Search titles only. Search Advanced search….

Your tires can't talk, but they have a lot to say. Not all tires are created equal, and most of the details that make the difference between a Bridgestone Blizzak and a Pirelli P Zero are summarized on the sidewall. Here's what the letters and numbers on your tires mean. The most basic information that you'll find on a tire's sidewall is related to its size. The first number corresponds to the tire's width in millimeters; in this case, the tire is millimeters wide. The second number denotes the tire's aspect ratio; it's expressed as a percentage. Next is the letter R, which appears on nearly every tire regardless of the type of car it's installed on. It stands for "radial," and it indicates that radial layers make up the tire. The alternative is bias-ply, a type of construction that's increasingly becoming obsolete. Bias-ply tires are generally found on older cars and their size is normally expressed differently than a radial tire's.

What does 88t mean on a tire

When it comes to tires, the alphanumeric jungle imprinted on their sidewalls often induces a foggy-eyed gaze from most vehicle owners. The load index 88 in this case is a numerical code associated with the maximum load a tire can carry at the speed indicated by its speed rating under specific service conditions. An 88 load index equates to a load capacity of lbs. Each letter signifies the maximum speed at which the tire can carry a load corresponding to its load index. For instance, a tire with an H speed rating can carry its rated load up to speeds of mph.

Osu twitch

Today, the only speed rating still included in the tire size is the Z rating sports cars. I know that this can cause problems at MOT time if the tyres have a speed rating that is below the manufacturers recommendation. This also allows the tyre to take a higher amount of air pressure PSI , allowing for heavier loads. Tyre speed ratings tell you the maximum speed that particular tyre is legally approved for. Media New media New comments Search media. Units » Power Heat Flow » Watt int. Read more: Why winter tires are worth it. You should never go below the recommended tyre load rating for your vehicle, although it is safe to go for a higher rating. Rory Senior Member. It stands for "radial," and it indicates that radial layers make up the tire. You are using a website browser that is not supported by this website. Forums New posts Search forums. Read more: Five things you should know about a spare tire. Each letter corresponds to a specific speed.

The numbers and letters you see like 84T, 84S, 84Q, etc. This nomenclature signifies two crucial pieces of information about your tire: the load index and the speed rating. Remember, exceeding these limits can lead to tire failure and jeopardize safety.

I stand corrected! Open Chat Options. By continuing to browse our website, you agree to use these cookies. Tire Care. With a little reading, it's easy to understand what the series of letters and numbers mean on your tyre's sidewall. This site uses cookies to enhance your user experience. Each letter corresponds to a specific speed. Let's say that at first order the friction coefficient is independent of the surface, but at second order it is not. Belted tires are rarely seen these days. Width What width? On the bottom end of the chart, an R-rated tire is certified for up to mph.