Posted On 16 Mar 2022. The letters ZR on the sidewall relate to a tyre’s speed rating, which in this case is 150mph. That means it should not be driven at speeds in excess of 150mph (240kmph) – of course, where such speeds are even legal! Before 1990, ZR was used for high-performance tyres.

## What does ZR mean on a car?

Since automobiles have significantly developed and the car speed has exceeded what was thought impossible – 150 mph, the ZR symbol was created to imply the case. ZR is split into Y, W, and the original Z-rated tires. You can double-check with the tire manufacturers when buying new tires to see what appropriate speed rating you need: W, Y, or Z.

## What is the difference between Zr and R tires?

Hopefully, our article helps you figure out the definition of ZR tires and the difference between ZR and R tires. Simply put, the symbol R indicates both the radial construction and the speed certified for 106 mph, while ZR tires used to be known as the over 149 mph speed rating tires.

## What does a to Z mean on a tire?

A letter from A to Z symbolizes a tire’s certified speed rating, ranging from 5 km / h (3 mph ) to above 300 km/h (186 mph). For tires having a maximum speed capability above 240 km/h (149 mph), a “ ZR ” may appear in the size designation.

## What does ZR 19 mean?

In a label of “ZR 19”, the Z refers to the speed rating. All tires that go above 186 mph are required to have a Z speed rating. In other words, this is a quick way to tell that the tire can go above 186. With that said, there are subcategories for the “Z” rating that may also appear on the tire.

## What does 91h mean on a tire?

A: The 91 is the load index (how much weight the tires can handle). 91 = 1355 lbs. H and T are speed ratings (what speed the tires can handle). H = 130 mph; T = 118 mph. Thank you for your interest.

### What is the difference between 91h and 91T?

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). The H and T refer to the speed rating of the tire. Max Speed for T is 118 mph or 190 km/h (For Family Sedans & Vans) Max Speed for H is 130 mph or 210 km/h (Sport Sedans & Coupes).

### What does the H number on a tire mean?

The H and T refer to the speed rating of the tire. Max Speed for T is 118 mph or 190 km/h (For Family Sedans & Vans) Max Speed for H is 130 mph or 210 km/h (Sport Sedans & Coupes). What does the V number mean on tires?

### How fast can a 91V tyre run?

Here, you can see that a tire with a 91V mark can run at a maximum speed of 149 mph while carrying 615 kilograms or 1,356 pounds of load. Speed rating Speed rating corresponds to the maximum speed that a tire can sustain when it is carrying the recommended load capacity. What does the V stand for on a tyre?

### What is a MOSC 91h30 code?

The 91 is the load index of the tire and is a code that corresponds to a load capability. In this example the “H” is the tire speed rating. What are the duties of the MOSC 91h30?

## What does 92y mean on a tire?

“Y” is the highest rating and it means the tire can handle speeds of up to 186 mph. “S” is the lowest speed rating, which means the tire is safe for up to 112 mph. “Z” used to be the highest rating for speeds over 149 mph.

### What does 92 mean on a tire?

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. The Y is the speed rating, or the maximum speed the tire was designed to withstand and maintain.

### What does 91 mean on a tyre?

91 – This is the load index, or the maximum carrying capacity of each individual tyre (provided that the inflation pressure is correct). In our case we have a capacity of a little under 500 kg. The weight that a rear tyre can handle is indicated in pounds. H – Finally we have the speed index.

### What does 96 y mean on a tire?

The higher the number, the more weight the tires can handle. In this case, “96” means the tire can handle 1,565 pounds, while the “Y” indicates the tire is rated to be safe at speeds up to 186 miles per hour. But what about that “Z” rating mentioned earlier? “Z” means that the tire has been tested over 149 mph, but doesn’t indicate how far over.

### What is a tyre load rating?

The tyre load rating or load index (in our example: 91) is a code which corresponds to a maximum load (in kg) that can be carried by a single tyre. The tyre speed rating (in our example: V) is a code which corresponds to the maximum speed at which a tyre can carry its maximum load.

## What does 102w mean on a tire?

102: This is the load index. How much weight the tyre can carry. W: This is the speed index. The maximum speed the tyre is designed for.

### What is the difference between 101H and 102t tires?

A tire with a 101H load and speed index is rated for a maximum load carrying capacity of 1,819 pounds. A tire with a 102T rating is capable of safely supporting 1,874 pounds. The load is per tire, so a vehicle with 101H tires has a maximum curb weight of 7,276 pounds, and one with 102T tires can carry 7,496 pounds.

### How much weight can a 102t tire carry?

A tire with a 102T rating is capable of safely supporting 1,874 pounds. The load is per tire, so a vehicle with 101H tires has a maximum curb weight of 7,276 pounds, and one with 102T tires can carry 7,496 pounds. The letter-indicated speed ratings are the maximum speed at which a tire can be safely driven.

### What does a W tyre rating mean?

Essentially, it means that your tyres will be able to handle a specific maximum speed while carrying a load. Typically, tyres with a W rating can handle a maximum speed of 168 mph. However, it is important to keep in mind that your tyre rating does not necessarily indicate the top speed that your vehicle is cable of reaching.

### What does 95 mean on a tire?

The next number ( 95) is the Load Index. Load Index shows the maximum load that the tire can support when inflated properly. You can also find the maximum load on the tire sidewall in both LBS pounds and KG kilograms. The last letter ( H) identifies the Speed Rating. The speed rating tells you the maximum speed capability of a tire.