The first three numbers, in this case 195, refer to the section width of the tyre. This is the measurement, in millimetres, from the tyre’s inner sidewall to its outer sidewall.

## What are the three numbers on tire size?

The three numbers on tire size represent the width, height, and diameter of the tire, respectively. The width is measured in millimeters and indicates how wide the tire is from side to side. The height is measured in a height-to-width ratio. The diameter is measured in inches and tells you the size of the rim or wheel that the tire will fit onto.

## How to read tyre size?

When it comes to how to read tyre size, the first five digits of the code are the ones to concentrate on. The first three digits belong together and indicate the width of the tyre (in millimetres). In the example above, the tyre is 195mm wide. The two digits following the first slash are what is known as the aspect ratio.

## What is the second number on a tyre?

The second number refers to the profile of the tyre or the height of the tyre’s sidewall. The number isn’t in millimetres but is instead an aspect ratio measurement of how the height relates to total width. In our example, the tyres profile is 45% of the total 235mm width. Unnecessarily tricky? Maybe, but stick with us.

## Why do the numbers on tires matter?

The numbers on tires matter for a number of reasons. For starters, it tells you the size of the tire, which is important to know. Putting the wrong sized tires on your car can lead to a number of hazards, such as rubbing against the body of your vehicle and catching important electrical lines.

## What is the best car tyre brand?

The top 10 tyre brands

- Bridgestone. Bridgestone is a Japanese tyre maker and the largest tyre manufacturer in the world. …
- 2.Michelin. …
- Goodyear. …
- Pirelli. …
- Apollo tyres. …
- MRF tyres (Madras Rubber Factory) …
- Continental. …
- Dunlop.

### What is the best tire brand?

#1. Michelin You cannot miss Michelin tires. Michelin is a famous French tire business established in 1889. This tire brand gained wide popularity for offering the best tire in the world for automobiles with premium rubber to ensure the safety of your vehicles.

### Is Michelin a good tire brand?

Michelin is the world’s top tire manufacturer and leads the industry in innovation and trust. As our top Golden Wrench winner for Best Tire Brand, Michelin has a trusted track record for quality and longevity.

### Is Goodyear a good tire brand?

It has ranked fourth among the top-ranking tire brands in the world by 2017. Many evaluate that the tires of this brand are pretty durable and able to handle more than 200 MPH speed. Notably, you can find its exclusive Standalone Goodyear tire shops nationwide to buy its tires.

### What are the best winter tyres?

Goodyear also offers a decent selection of winter tyres. French brand Michelin may make tyres for nearly everything that rolls, and it’s also one of the few mainstream tyre brands to offer track-oriented but road-legal ‘cup tyres’, which typically adorn top-tier sports cars (and are priced accordingly).

## What does 33 tyres mean?

33 is the tire height, or diameter (inches) 12.50 is the section width (inches) R represents the carcass construction (radial) 17 is the wheel diameter (inches) 105 is the load index.

### What does 33 mean on a tire?

The 33” refers to the width of the tire (285) multiplied by the height percentage of the sidewall (75), in millimeters, x2 because there are two sidewalls, divided by 25.4 (inches) plus the wheel size in inches (16”). Phew!!! That’s a mouthful and a lot to digest at once so let’s break it down into a simple formula.

### Is a 33-inch tire a good size for a 4×4?

A 33-inch tire is a good option for a serious 4×4 vehicle that can still handle and drive decently on normal roads you drive daily. What size are 33-inch tires, and how does that translate to millimeters? The difficulty is that a 33-inch tire could mean many different tire sizes depending on the rim size.

### Are 285 wide tires the same as 33” tires?

That’s a mouthful and a lot to digest at once so let’s break it down into a simple formula. YES, 285 wide tires are the same as 33” tires although 285 is the tread width in millimeters and 33″ is the tire diameter. 285/75/16 is usually the accepted metric equivalent size for 33’s. Let’s see what that looks like in a formula form

## What are 4 * 4 tyres?

4×4 tyres, also known as off-road tyres or all-terrain tyres, are a type of tyre specifically designed for use on off-road vehicles. These tyres are typically larger and more robust than regular tyres, with deeper treads and reinforced sidewalls.

### What are 4×4 tyres?

Simply put, 4×4 tyres can be broken down into categories – Mud Terrain (M/T), All Terrain (A/T) and Highway Terrain (H/T), and there’s also Light Truck (L/T) construction – each with its own strengths and compromises, depending on the kind of off-roading you have in mind.

### Are Bridgestone 4×4 tyres good?

For grip, durability and performance, the Bridgestone range has you covered both on and off the road. Whether you’re tackling the harshest 4WD terrain or hitting the highway to enjoy the open road, there’s a hardworking Dueler 4×4 tyre for you.

### How do I know if I need a new 4×4 tyre?

A good sign that you’re due for a new 4×4 tyre is when the old one has worn down to the treadwear indicators (around 2mm remaining is a good time to start thinking about replacement), or they start to chip, crack or sustain any irreparable damage. Also keep an eye on the tyre’s block edges.

### What are specialist SUV and 4×4 tyres?

In order to achieve all of these goals, most specialist SUV and 4×4 tyres offer a fairly comfortable trade-off between ruggedness, durability, and general ‘road manners’ (i.e. performance, ride quality and noise levels on standard tarmac surfaces).

## What is a tyre speed rating?

Tyre speed ratings tell you the maximum speed that particular tyre is legally approved for. This measurement ensures that the tyre you buy is appropriate – and safe – for the speed of the car it’s fitted on.

A tyre speed rating indicates the maximum speed a tyre is legally approved for. You can find your tyres’ speed rating on the sidewall of the tyre as shown in the image.

### How do tyre speed ratings work?

Speed ratings are achieved through tests performed by engineers who run the tyre at 6.2 mph steps, in 10 minute increments, until the required speed has been met. Wider, larger-diameter tyres often have a higher speed rating as they are usually fitted to higher-performance cars therefore, are typically designed to cope with higher speeds.

### What does TSR mean on a tyre?

The TSR is part of the tyre speed index system which indicates the maximum speed your tyre can be driven on. The system is a lettered code, and letters correspond to speeds. Your rating is clearly displayed on the sidewall of your tyre. What happens if I choose a tyre with the wrong speed rating?

### How fast can a tyre go?

Z-rated high-performance tyres are rated for speeds in excess of 149mph. Confusingly, W-rated tyres are rated at a higher speed in excess of 168mph. Y-rated tyres are rated in excess of 186mph. See the full list below. Tyre speed ratings should be matched to the official top speed of your car.

### What is a passenger tire speed rating?

Most modern passenger tires bear a tire speed rating, a designation indicating the tire’s designed speed capability. In other words, it’s the fastest speed a tire can handle before it does not perform as designed.

## What does 225 45 r17 mean?

Aspect ratio So if the tire markings indicate P225/45R17 91V, it means that the height of the sidewall is 225 multiplied by 0.55 or 101.25 millimeters. The number 45 means that the height is equal to 45 percent of the width. Bigger tire ratio indicates bigger and taller tire sidewall.

### What does 225-45r17 mean?

Tire sizes are easy to understand once you learn how to read them. On this page you’ll find a color-coded explanation of the 225-45R17 tire code. This number indicates that your tire has a width of 225 millimeters. The tire size was designed to fit rims or wheels that are 17 inches in diameter.

### What is the closest tire size to 225/45 R17?

225/45 R17 tires diameter is 25 inches, section width is 8.9 inches and rim diameter is 17 inches. So the closest metric tire size of 225/45R17 existing size in inches is 31×10.50R17, which is 24% taller and 17.98% wider. Compare 225/45 R17 vs 31×10.50R17 with our handy tire size calculator. What rims fit 225/45 R17 tires?

### What does 235/45r17 mean on a tyre sidewall?

Grab a pen and paper or snap a photo of the numbers on your tyre sidewall. The example we will use here is 235/45R17. The first number is the easiest and measures the width of the tyre in metric millimetres. 235 means your tyre is 235mm wide. The second number refers to the profile of the tyre or the height of the tyre’s sidewall.

### What does 45 mean on a tyre?

This number is the nominal width of the tyre (in millimeters) from one sidewall to the other. Following the slash, the next number in the sequence is “45”. This number is the tyre’s aspect ratio – essentially the height of the tyre’s profile outward from the rim represented as a percentage of the tyre’s width.

## What does 195 55 R16 mean?

(195mm) width section of the tyre that comes in contact with the road. (55%) Aspect ratio – the height of the sidewall as a percentage of its width. (R16) This is the inner diameter of the tyre, where your rim fits.

### What does 195 mean on a tire?

This number indicates that your tire has a width of 195 millimeters. The tire size was designed to fit rims or wheels that are 16 inches in diameter. This number means that your tire has an aspect ratio of 55%. In other words, your tire’s sidewall height (from the edge of the rim to the tire’s tread) is 55% of the width.

### What is the diameter of 195/55R16 tires?

195/55R16 tires have a diameter of 24.4″, a section width of 7.7″, and a wheel diameter of 16″. The circumference is 76.8″ and they have 825 revolutions per mile. Generally they are approved to be mounted on 5.5-7″ wide wheels. Specs may vary by manufacturer.

### What does 195/65 R 15 91h mean?

We shall therefore analyse it in detail to discover what 195/65 R 15 91H means. 195 – This is the maximum width of the tyre, under conditions in which the vehicle is fully loaded, and in our example as you may have guessed, this comes to a maximum of 195 mm. 65 – Represents the ratio between the width and height of the tyre from the rim.

### What does 195-55r16 mean?

Tire sizes are easy to understand once you learn how to read them. On this page you’ll find a color-coded explanation of the 195-55R16 tire code. This number indicates that your tire has a width of 195 millimeters. The tire size was designed to fit rims or wheels that are 16 inches in diameter.

## What does 205 65r16 mean?

205/65 R16 95 V. The Aspect ratio or profile is the height of the tyre form the rim to the tread area. It’s shown as a percentage of the tread width. In this case the “height” of the tyre is 65% of the width.

Tire sizes are easy to understand once you learn how to read them. On this page you’ll find a color-coded explanation of the 205-65R16 tire code. This number indicates that your tire has a width of 205 millimeters. The tire size was designed to fit rims or wheels that are 16 inches in diameter.

### What is the diameter of 205/65r16 tires?

205/65R16 tires have a diameter of 26.5″, a section width of 8.1″, and a wheel diameter of 16″. The circumference is 83.2″ and they have 762 revolutions per mile. Generally they are approved to be mounted on 5.5-7.5″ wide wheels. Upsizing Wheels or Tires? When searching for the perfect tire for your vehicle you need options.

### What does 205/55 R16 mean?

Using our example size, 205/55 R16, this is what each number means: 205 is the width of the tyre tread in millimetres. This goes up in increments of 5.

### What is the difference between 205 and 65?

205 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. 16 inches, stands for the diameter of the wheel that the tyre is designed to fit. Radial construction. R stands for radial-ply construction.

## What is unique tyre code?

What is DOT? DOT is the abbreviation for “Department of Transportation” and indicates a unique tyre code which is a series of 7 to 13 letters and numbers printed on the sidewall of a tyre (the vertical surface of rubber above the wheel).

### What is a tyre code?

It tells you the range, size and specific characteristics of a given tyre, namely: sidewall height; width; aspect ratio; construction type; load index; and speed rating. Here we provide an example tyre code to help explain what each component means: 205 – the width of the tyre section in millimetres.

### What are tyre markings?

Next in our series of tyre markings is a letter instead of a number. This letter indicates the type of construction used within the casing of the tyre, which in our example is “R” for Radial construction. Other examples are “B” for Bias-ply or “D” for Diagonal construction. Radial tyres are the most common tyres on the road today.

### How do you know if a tyre has been manufactured?

The first two numbers of the 4-digit DOT date code (which, again, appears at the very end of the string of letters and numbers that start with DOT) indicate the week that the tyre was manufactured. The last two numbers of the date code tell you the year of manufacture.

### What is a dot code on a tire?

DOT stands for Department of Transportation and the code provides information about when and where the tire was made and its size. The DOT code is sometimes called a Tire Identification Number (TIN). Read the last 4 digits of the DOT code (post-2000). Look for 4 numbers ending with 2 digits that look like a past year.

## What does 99v mean on a tyre?

The speed rating is the letter at the end of the sidewall, after the load index number. A tyre with a speed rating of V, for example, has a maximum speed of 240 km/h. When buying new tyres, make sure you match their speed rating with the speed capabilities of your vehicle.

### What does a tyre number mean?

The second number (55) tells you the height of the tyre as a percentage of the width. The letter (R) stands for “Radial” which is the type of tyre. The number (16) tells you the size of the wheel rim in inches. The last two numbers (91) tell you the load index rating and the letter (V) tells you the speed rating.

### What does R Mean on a tyre?

The letter (R) stands for “RRadial” which is the type of tyre. The number (16) tells you the size of the wheel rim in inches. The last two numbers (91) tell you the load index rating and the letter (V) tells you the speed rating. Here they are labelled and broken down further:

### What is the difference between H and V tires?

The main difference between the two speed ratings is obviously the speed. An “H” rated tire is designed to operate at a maximum speed of 130 mph. A “V” rated tire on the other hand is designed to operate at a maximum speed of 149 mph, almost twenty miles an hour more than the “H” rated tire. Speed is not the only difference, however.

## What is the meaning of 90 90 18 tyre?

The term “aspect ratio” was unknown. But today, a 90/90-18 means that the tire has an aspect ratio of 90%. That is, if the tire is (nominally) 90 mm wide, and the aspect ratio is 90%, then the tire is 90% of 90 mm, or 81 mm tall. In other words, the second “90” means that the tire’s profile is 90% of its width.

### What does 100/90 mean on a Shinko tire?

In this case you will have a set of number in this manner: 100/90 – 19. This Shinko tire reading means it is 100 mm wide, with a 90% aspect ratio and can be mounted on to a rim of 19 inches. In short, Metric measurement takes either the Width/aspect ratio-rim size format or Width/aspect ratio-speed rating-Tire Construction-Rim size format.

### 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 tyre size mean?

It is important to know exactly what is meant by tyre size. The code that is found on the tyres gives more than just the basic size. The size elements are essentially the tyre’s height and width. Tyre sizes will also vary depending on the type of vehicle i.e. van and lorry tyres tend to be larger/chunkier than car tyres.

## What is my tyre code?

You can find the tyre labelling on the sidewall of your tyre. Look for a two-to-three-digit number which indicates the tyre load capacity.

### What do the numbers on tires mean?

The first 2 numbers tell you the week the tires were manufactured, and the last 2 tell you the year. If you see 2718, for example, that means the tire was made in the 27th week of 2018. This 4-digit marking at the end of the DOT code applies to tires manufactured in or after the year 2000.

## How are tyres classified?

In general, there are two major classes of tyres, according to the presence or absence of tubes in them. Thus, they are called ‘tubed tyres’ and ‘tubeless tyres’ respectively.

## What is 31 tyres?

The total diameter of the tire (from top to bottom). In this case, it’s 31 inches. The section width is the width of the tread from sidewall to sidewall. In this example, it’s 10.50 inches.

### What size tires fit 31 inch rims?

31-inch tires can fit from 15-inch rim to 17-inch rim. You just need to find the right fit 31-inch tire for your vehicle. 31-inch tires Aspect ratio can be up 85%. Less stress to other components in the vehicle. The typical 31-inch tire might not work well in extreme off-road conditions.

### What is a 31×10 R15 tire size?

31X10.50R15 tires have a diameter of 31.0″, a section width of 10.5″, and a wheel diameter of 15″. The circumference is 97.3″ and they have 651 revolutions per mile. Generally they are approved to be mounted on 7-9″ wide wheels. Upsizing Wheels or Tires? When searching for the perfect tire for your vehicle you need options.

### What are the pros and cons of 31-inch and 32-inch tires?

There is no doubt that 31-inch and 32-inch tires can provide good performance for your vehicle, and each has its pros and cons. 31-inch tires are comparatively smaller and lighter than some other tires used on rough terrain. You can find great Mud tires and All-terrain tires in 31 inches.

### What is a tyre size calculator?

There are many more possibilities and choices in metric tyres so the use of a tyre size calculator can come in handy. The tire size comparison calculator takes the measurements of two tyres and compares the diameter, width, sidewall, circumference, and revolutions per mile.

## What is E3 and E4 in tyres?

An E3 tire will have more tread than void to provide resistance to rock damage, yet provide adequate traction. An E4 tire has tread depths of 150% of E3 tires for greater resistance to rock damage. Compounds used in tire construction can also affect selection.

### What does E4 mean on a tyre?

The final pair of digits – E4 – is an approval mark showing the tyre has been tested and approved by the European regulatory authorities. You should always check your tyres carry this approval. What is a tyre speed rating?

### What are E3 G3 and L3 tyres?

E3, G3 and L3 tyres are designed to eject stones from the tread and minimise damage from rough or sharp terrain. E4, G4 and L4 tyres are similar to E3, G3 and L3 but with a 1.5 times deeper tread. This makes the tyre harder to damage and increases service life.

### What does E mean on a tire?

A (lower case) “e” indicates that the tire is certified to comply with the dimensional, performance and marking requirements of Directive 92/23/EEC. The number in the circle or rectangle denotes the country code of the government that granted the type approval.