Quick Answer: How Do You Read Tires Sizes?

How do you read tire size numbers?

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.

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. It’s the height of the sidewall measured from wheel rim to top of the tread, expressed as a percentage of tire width. In other words, it’s sidewall height divided by tire width.

What does the 265 70r17 mean?

This number indicates that your tire has a width of 265 millimeters. 70. This number means that your tire has an aspect ratio of 70%. In other words, your tire’s sidewall height (from the edge of the rim to the tire’s tread) is 70% of the width. In this case, the sidewall height works out to be 185 millimeters.

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How do you read tire sizes in inches?

In most cases with inch measurement tires the width will have a. 50 decimal after the initial number. In example “A” this reads 12.50, meaning the tire width is 12 and 1/2 inches. The final number simply is the wheel size or “diameter” of the wheel that the tire will fit on.

Can I use 235 tires instead of 225?

Yesthat size will work 100% perfectly, as it is the exact same diameter as the 225/75-16. 235/70-16 is actually a shorter tire.

How tall is a 17 inch tire?

17 INCH TIRES TIRE HEIGHT
225 35 17 23.20
245 35 17 23.75
315 35 17 25.68
335 35 17 26.23

Can I use 215 tires instead of 205?

Nope. The nominal diameter of the 215’s is 1.7% greater than that of the 205’s. The sidewall height is a percentage of the width of the tire, so a 55 series is taller with a wider tire.

Are wider tires better?

From a safety point of view, both types have their good sides: On a dry road, wider tires will offer more grip than narrow ones, but the risk of aquaplaning will be higher with wide tires. – In the winter, narrow tires are better under extreme conditions as they provide higher surface pressure against the road.

Can I put 2 different size tires on my car?

Long story short: Yes, it is a problem to have two tires of different sizes on the front (or back) of your car. Having two differentsized tires on the same axle is generally not a good thing. Sometimes, people choose to put larger tires on the rear axle of their vehicle for handling reasons, cosmetic reasons, etc.

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Does changing tire size affect transmission?

Changing tire size doesn’t affect your transmission, but it does change your final drive ratio. The effect is the same as if you had changed your transmission. Larger tires will lower your final drive ratio. (as if all your gears were “higher”) Your car will go further with each revolution of the tire.

What’s the difference between 265 and 285 tires?

The larger 285/70R17 tire in the photo above stands over an inch taller and is nearly an inch wider than the 265/70R17 size. The width of the tread is also a half-inch wider. Many late-model domestic trucks accept this difference in size.

Are 285 tires the same as 33?

285/75/16 is the metric equivalent of a 33tire. Although the 285/75/16 is usually the accepted metric size for 33’s, the actual diameter of the tire varies from manufacturer to manufacturer. 285’s actually vary in true diameter. Meaning some are smaller than 33″ and some are larger.

What size is a 32 inch tire?

Diameter Comparison of Light Truck Tire Sizes

Approx. Tire Diameter (in Inches) P-Metric and European Metric LT-Metric
75-series and 70-series 75-series and 70-series
32 LT265/75R16
31-1/2 265/70R17 LT265/75R16
265/75R16

What does C mean on tire size?

C – in Euro-metric sizes, this means the tire is commercial, for delivery vans and trucks. The letter is usually at the end of the size description, along with the load range (B, C, or D).

What size is a 35 tire?

Tire size equivalent chart for 33″, 35″, 37″ or 40″ tires:

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33″ Tires (+/- 0.50″ in overall diameter)
33X15.50-15
35″ Tires (+/- 0.50″ in overall diameter)
15″ 16″ 17″
35X12.50-15 315/75-16 315/70-17

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