B: TIRE WIDTH The three-digit number following the letter is the tires width (from side to side, looking at the tire head on) in millimeters. This may also be referred to as the section width. In this example, the aspect ratio is 65, meaning the sidewall is 65 percent as high as the tire is wide.

What does the first 3 numbers on a tire mean?

tire width 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.

What does the 265 70R17 mean?

On this page youll find a color-coded explanation of the 265-70R17 tire code. This number means that your tire has an aspect ratio of 70%. In other words, your tires sidewall height (from the edge of the rim to the tires tread) is 70% of the width. In this case, the sidewall height works out to be 185 millimeters.

What is the difference between a 55 and 60 tire?

Going from a 60 to a 55 series IF the tire is the *SAME width will: 1: Cause the speedo to read faster, as a 55 has more revs per mile/km. 2: Cause increased ride harshness. 3: Result in increased wear= Vehicle.

What does the first and second number on a tire mean?

The first number in the Flotation tire size is the overall diameter in inches. Pretty straight forward. Section Width. The second number is the section width (sidewall to sidewall) measurement in inches.

Whats the difference between 285 and 265 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.

How much wider is a 275 tire than a 265?

Depending on the specific dimensions of the tire, the only difference will be 0.4 wider and 0.6 taller per tire. The biggest difference is going to be going from a passenger rated tire to a light truck tire. Check out my garage.

Can I use 60 tires instead of 55?

Yes the wheel/tire combo has an overall diameter/circumference that should be maintained with 3% (+/-) the original spec. When you plus size wheels the aspect ratio (height of the tire) decreases to compensate and maintain the orig diameter/circumference.

What does 60 mean on a tire?

60 is the two-figure aspect ratio. This percentage compares the tires section height with the tires section width. For example, this aspect ratio of 60 means that the tires section height is 60% of the tires section width. R indicates the construction used within the tires casing. R stands for radial construction.

How much wider is a 225 than a 215 tire?

The first number (215) indicates the width of the tire in millimeters. The second number (45R) stands for the sidewall height. Its a percentage of the tires width and is commonly referred to as the aspect ratio. In this regard, the aspect ratio of 215/45R17 is 45 percent of the 225 millimeters width.

Can you put 285 tires on 245 rims?

285 is the tire width, 75 is the aspect ratio of tire sidewall of the width. 245 are narrower, about only 9 wide. So they fit nice on a 6 rim.

Are 275 tires bigger than 265?

Going from 265/70/17 to 275/70/17 isnt a big deal. Depending on the specific dimensions of the tire, the only difference will be 0.4 wider and 0.6 taller per tire. The biggest difference is going to be going from a passenger rated tire to a light truck tire.

Is 275 A wide tire?

275/30, 275/35, and 275/40 tires are all standardized with 9.5 wide wheels with a diameter of 18/19. Recommended width range is 9-11 wide.

Can a 265 tire fit on a 275 rim?

There is no specific width to run a 265 or 275. Most of the time they will fit on the same wheel. It all has to do with size, sidewall, and manufacturer.

What does the 60 mean in tire size?

60 is the two-figure aspect ratio. This percentage compares the tires section height with the tires section width. For example, this aspect ratio of 60 means that the tires section height is 60% of the tires section width. R indicates the construction used within the tires casing. R stands for radial construction.

What does the 55 mean on a tire?

The “55” grouping is the aspect ratio and is by far one of the most misunderstood dimensions. This is the height of the sidewall from wheel to tread relative to the width. Manufacturers represent this measurement in a percentage, so in our example, the sidewall is 129.25 millimeters — 5.08 inches — tall (235 x 0.55).