What Does The Tire Number Mean

The first number to appear in your tire size information is the width, in millimeters, of the correct tires for your vehicle: P225/70R16 91S. Tire width always refers to the measurement from one sidewall to another. If a tire has an aspect ratio of 70, it means the tire’s height is 70% of its width.

What do the 3 numbers mean on tire size?

Tire Width Is the width of the tire measured in millimeters from sidewall to sidewall. The first three-digit number in the tire size refers to the tire width. For instance, in a size P215/65 R15 tire, the width is 215 millimeters.

Can you use 235 tires instead of 225?

Can 225 fit 235 tires? Yes, they can. 225 tires are 10 mm narrower and 15 mm lower in height than the 235 tires. Besides, 235 tires are wider than 225, and so we recommend checking the owner’s manual.

Can I use 245 tires instead of 235?

So you have already identified the difference between 235 and 245 size tires. It is obvious that 245 is bigger than 235, still, both tires’ sizes are pretty common and could be interchangeable at times.

What does 50r mean on tires?

50 is the two-figure aspect ratio. This percentage compares the tire’s section height with the tire’s section width. For example, this aspect ratio of 50 means that the tire’s section height is 50% of the tire’s section width. R indicates the construction used within the tires casing. R stands for radial construction.

Should I change all 4 tires?

Some manufacturers of all-wheel-drive vehicles recommend that all four tires be replaced, not just one or two, because a new tire will have a larger overall diameter than the other tires. The best approach, though, is to replace all four if the tread on the old tires is significantly worn.

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.

Is wider tires better?

Overall, wider tires are better for dry surfaces and for high-performance vehicles. Greater surface area allows for better day-to-day traction and durability.

Which tire is wider 245 or 255?

While the exact dimensions of a 245 or a 255 tire can vary somewhat between tire manufacturers, for any specific manufacturer a 255 tire will have a wider section width (bulge or tread width) than a 245 tire, the difference being 10 mm.

What does P245 mean on a tire?

Tire Width Looking at the same number sequence, locate the three-digit number directly following the tire type. In the example “P245/50R20 102V,” the number indicating the tire width is 245. This tells you how wide your vehicle’s tires need to be to fit onto the wheels.

What does P245 75r16 mean?

This number indicates that your tire has a width of 245 millimeters. 75. This number means that your tire has an aspect ratio of 75%. In other words, your tire’s sidewall height (from the edge of the rim to the tire’s tread) is 75% of the width.

Will a 65 tire fit a 60?

Yes, the only real difference is that ratio between the tread width and the height of the sidewall will change. The lower the middle number the lower the profile of the tire the larger the number the higher the tire profile.

What is tyre R17?

Rim diameter – Indicated by R17, where ‘R’ stands for Radial and ’17’ is the diameter of the rim in inches. Load index – ’95’ stands for the tyre load index and indicates your tyre’s maximum safe weight-carrying capacity. (Jun 5, 2019.

What does 99 mean on a tire?

The higher the tire’s load index number, the greater its load carrying capacity. 97 = 1,609 pounds. 98 = 1,653 pounds. 99 = 1,709 pounds. A tire with a higher load index than that of the Original Equipment tire indicates an increase in load capacity.

How Much Should 4 new tires cost?

According to recent reviews, Angie’s List members report paying an average cost of $637 to replace four tires, with a range of $525 to $725. According to CostHelper, a standard, all-season tire costs between $50 and $200 each with an average price of $80 to $150.

Should new tires go on front or back?

According to Tire Review, new tires should always go in the back. Rear tires provide the vehicle stability, and if they have little tread, then stability is lost.

How long do tires usually last?

On average, people drive between 12,000 to 15,000 miles a year, which means the average good quality all-season tire will last somewhere between three and five years, depending on maintenance, driving style and conditions, etc.

What happens if you use wrong tire size?

Effects of Wrong Size Tires Choosing too tall of a tire can result in a vehicle prone to rolling over, a dangerous concern for any driver. Tall tires may also rub against the inside of the wheel well. While not immediately problematic, this rubbing can lead to steering issues over time.

Can I use 265 tires instead of 255?

In principle yes, if a rim came with a 265 wide tire, a 255 will fit to.

What are the most common tire sizes?

According to 2017 stats from TRAC (Tire and Rubber Association of Canada), below are the most popular tire sizes listed in order of popularity: 225/65R17, LT265/70R17, 265/70R17, LT245/75/R16, LT275/70R18, LT225/75R16, 235/65R17, 275/55R20, LT275/65R18, 215/70R16, 245/60R18.