285 70r17 vs 275 70r18 Tire Size

There is a lot of discussion about what size tire to put on a vehicle. Some people believe that a bigger tire is better, while others think a smaller tire is better. This blog post will compare the two most popular sizes, 285 70r17, and 275 70r18. We will look at the pros and cons of each size and help you decide which one is best for you. Keep reading to learn more!

285/70r17 vs 275/70r18 Table

This table shows a comparison of the two tire sizes and helps you to decide which one is better for you.

285/70r17

275/70r18

Overall Diameter 32.71 inches

Overall Diameter 33.16 inches

Width 11.22 inches 

Width 10.83 inches

Sidewall Height 7.85 inches 

Sidewall Height 7.58 inches 

Radial Tire (A Radial-Ply Tire)

Radial Tire (A Radial-Ply Tire)

Rim Size 17 inches

Rim Size 18 inches

Circumference 102.76 inches

Circumference 104.17 inches

Revs Per Mile 616

Revs Per Mile 608

Overall Diameter

The 285 70r17 has a diameter of 32.71 inches, while the 275 70r18 has a diameter of 33.16 inches. This means that the 275 70r18 is slightly larger in diameter than the 285 70r17.

If you are looking for a tire that is a bit larger in diameter, then the 275 70r18 may be a better option for you. However, if you are looking for a tire that is a bit smaller in diameter, then the 285 70r17 may be a better option for you.

Section Width

The 285 70r17 has a section width of 11.22 inches, while the 275 70r18 has a section width of 10.83 inches. This means that the 285 70r17 is slightly wider than the 275 70r18.

The difference between the section widths of these two tires is not very large, but if you are looking for a slightly wider tire, then the 285 70r17 may be a better option for you.

Circumference

The 285 70r17 has a circumference of 102.76 inches, while the 275 70r18 has a circumference of 104.17 inches. This means that the 275 70r18 is slightly longer in circumference than the 285 70r17. The difference in circumference is around 1.41 inches or 1.4%.

Revolutions Per Mile

Revolutions Per Mile (RPM) is how many times the tire will go around in one mile. The 285 70r17 has an RPM of 616, while the 275 70r18 has an RPM of 608. This means the 285 70r17 will go around 8.35 miles more in one mile than the 275 70r18.

The 285 70r17 has a higher RPM than the 275 70r18, which means it will go around more in one mile. If you are looking for a tire that will go approximately more in one mile, then the 285 70r17 may be a better option for you.

Sidewall Height

The sidewall height is the distance from the edge of the tire to the wheel. The 285 70r17 has a sidewall height of 7.85 inches, while the 275 70r18 has a sidewall height of 7.58 inches. This means that the 285 70r17 is taller than the 275 70r18.

If you are looking for a taller tire, the 285 70r17 may be a better option. However, if you are looking for a shorter tire, then the 275 70r18 may be a better option.

Wheel Size

The 285 70r17 has a wheel size of 17 inches, while the 275 70r18 has a wheel size of 18 inches. This means the 275 70r18 has a larger wheel size than the 285 70r17. So the 285 70r17 tire size is mounted in the 17-inch rim size, and the 275 70r18 tire size can mount in the 18-inch rim size.

Construction Type

Tire construction type is how a tire is built, and there are three main types: bias, radial, and belted bias. Both 285 70r17 and 275 70r18 tire sizes are radial types. Radial tire construction offers several advantages over other types of construction, such as improved tread life, fuel economy, and handling. If you are looking for a tire that is built in the radial construction type, then either the 285 70r17 or 275 70r18 would be a good option for you.

Our Observation

The main difference between 285 70r17 and 275 70r18 tire size is in the section width. The 285 70r17 is 0.39 inches or 3.6% wider than the 275 70r18.

After looking at the table, we can see that the 285 70r17 is smaller in diameter than the 275 70r18 but is more comprehensive and has a higher sidewall height. The 275 70r18 has a larger wheel size and circumference.

Conclusion

As you can see, there are a few differences between the 285 70r17 and 275 70r18 tire sizes. If you are trying to decide which size is better for you, it depends on what you are looking for in a tire. If you are looking for a tire that is a bit larger in diameter, then the 275 70r18 may be a better option for you. However, if you are looking for a wider tire, the 285 70r17 may be a better option.

We hope this article has helped you understand the differences between 285 70r17 and 275 70r18 tire sizes. If you have any questions, please feel free to leave a comment below, and we will do our best to answer them. Thanks for reading!

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