What does r19 mean on a tire?

The numbers in the tire size refer to its width, aspect ratio, and wheel diameter. "275/35R19" means the tire is 275 mm wide, has an aspect ratio (that is, the width divided by the height) of 35%, and fits on a 19" wheel.

What is r19 in tire?

Diagonal. 19. The tire size was designed to fit rims or wheels that are 19 inches in diameter. Ad. © 2022 Size My Tires.

Does the R in tire size matter?

For example, a tire with a speed rating "S" is rated for up to 112 mph, while a tire rated "R" is up to 106 mph. Remember that this isn't a recommended cruising speed, but rather the maximum speed that tire type can withstand. Of course, you should always follow legal speed limits on roadways.

How wide is a 245/40 r19 tire?

245/40R19 tires are 26.7″ tall, have a section width of 9.6″, and fit wheels with a diameter of 19. The circumference is 83.9″ that translates into 755 revolutions per mile.

Does the R on tires mean rim size?

Size of the wheel

After the letter R, a number that indicates the wheel size where it fits. So for the example, P225/45R17 91V, R17 means the tire is made of radial-ply construction and that it fits a 17-inch rim.

How to Read a Tire Size

What does R mean on a tire?

This is indicated in percentage of the tire width. “R” stands for the construction method of the tire indicating the tire is a radial tire. The following two numbers (16) indicate the diameter of the wheel rim in inches. The next two or three numbers (94) indicate the load index of the tire.

What R rated tires?

R speed rating

Speed rating R allows for speeds up to 106 mph (170 km/h) under optimal conditions. Like Q speed rated tires, R rated tires generally prioritize a particular function or unique performance over maximum speed capability.

What does 40r mean tires?

The fourth and fifth digit, in this case '40', is located after the width digits. These show the height of the tyre as a percentage of the tyre width. In this case, the profile, sometimes known as the “aspect ratio” is '40', which therefore means that the height of the tyre is 40% of the tyre width.

What numbers mean on tires?

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.

Can I put wider tires on my stock rims?

As a general rule of thumb, it's safe to fit a tire up to 20 millimeters wider than stock on the original rim. The actual width of the tire will vary depending on the width of the rim: The tire will expand 5 millimeters for every half inch (12.5 millimeters) increase in rim width.

How much difference in tire size is acceptable?

When changing tire sizes, we recommend staying within 3% of the diameter/height of the original tire. Any more than this and you face the risk of brake failure.

Can I put different size tires on my car?

Wheels and tires are not interchangeable words. Tires are a part of the wheel setup. For instance, your vehicle has a set size of rims, but you can buy different sizes of tires to fit those rims, as long as the middle of the tires is the correct size.

What is the advantage of 19-inch tires?

On the performance front, the 19-inch tires reportedly allow for sharper turn-in and more mid-corner balance, whereas the 17-inch tire felt more vague. This back-to-back-to-back examination of tires on the same course under the same car is the perfect way to test a set against another.

Are 19 or 20 inch wheels better?

20” wheels are more prone to damage and rarely last longer than 19” due to their stiffness and weight, unlike 20 inches. The 19-inch wheel is better due to its flexibility and lighter weight size. 19'' tires also have taller sidewall than the 20” and are therefore more compliant and less harsh.

Are 19-inch tires better than 18?

The Quick Answer. Having larger 19″ alloy wheels will result in better handling by improving cornering and stability compared to 18″ wheels. However, the smaller 18″ wheels will be more comfortable and result in less fuel consumption and road noise. The smaller 18″ wheels are also usually cheaper than 19″ wheels.

What does 16c mean on a tire?

The C-Type tire, on the other hand, is specifically meant as a commercial-rated tire, with a higher load rating for a given size than many LT tires. These C-Type tires will show the letter “C” immediately after the wheel diameter in the tire code. Example: 225/75R16C.

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. This may also be referred to as the section width. C: ASPECT RATIO The forward slash separates the tire width number from the two-digit aspect ratio.

Does width of tire matter?

The tire width will affect their price and several other characteristics, such as grip, noise level, driving comfort, and appearance. Replacing narrow tires with wider ones will usually increase rolling resistance and, therefore, slightly increase fuel consumption.

What is the difference between a 225 and 245 tire?

A 245 tire is approximately 10mm higher than a 225 tire. This also means that a wider tire is also going to increase your car's ride height. This is because wider tires tend to have a higher aspect ratio which essentially means that they are not only wider but also taller as opposed to narrower tires.

How wide is a 275 tire?

275/70R17 tires have a diameter of 32.2", a section width of 10.8", and a wheel diameter of 17". The circumference is 101.0" and they have 627 revolutions per mile. Generally they are approved to be mounted on 7-8.5" wide wheels.

How wide is a 245 tire?

245: The width of the tire, from sidewall to sidewall, in millimeters. A 245 is 245 millimeters, or 24.5 centimeters, wide. The tread width is actually somewhat smaller than the tire's actual width.

What does speed rating R mean?

R — Up to 106 mph. S — Up to 112 mph. T — Up to 118 mph. H — Up to 130 mph. V — Up to 149 mph.

Can I put a higher speed rated tire on my car?

SPEED RATINGS REFER TO MORE THAN JUST SPEED

You can always increase the speed rating of the tires on your vehicle for improved performance, but can never decrease it without reducing the vehicle top speed to that of the lower speed rating selected.