285/60r20 vs 285/65r20 Tire Size
When it comes to choosing the right tire size for your vehicle, there are a lot of factors to consider. Do you want a wider or narrower tire? What about taller or shorter? And what about the all-important question: what’s the difference between 285 60r20 and 285 65r20 tires?
In this blog post, we will break down the differences between these two sizes so that you can make an informed decision about which one is right for you.
285 60r20 vs 285 65r20 Table
285 65r20 | 285 60r20 |
Overall Diameter 34.59 inches | Overall Diameter 33.46 inches |
Width 11.22 inches | Width 11.22 inche |
Sidewall Height 7.29 inches | Sidewall Height 6.73 inches |
Radial Tire (A Radial-Ply Tire) | Radial Tire (A Radial-Ply Tire) |
Rim Size 18 inches | Rim Size 18 inches |
Circumference 108.66 inches | Circumference 105.13 inches |
Revs Per Mile 583 | Revs Per Mile 602 |
What Does 285/60r20 Tire Mean?
The first number in a 285 60r20 tire size 285 refers to the width of the tire in millimeters. The second number, 60, is the aspect ratio. This number indicates what percentage of the width of the tire is made up of the height of the sidewall. In this case, 60% of 285mm.
The last number in size, 20, is the diameter of the wheel that the tire is designed to fit. Now that we know what each number in 285 60r20 means, let’s take a look at how this compares to 285 65r20 tires.
Tire Diameter
Tire diameter is also called the “tall” of the tire. This is because it is a measure of how tall the sidewall of the tire is. The taller the sidewall, the taller the tire. The taller the tire, the bigger the contact patch. The bigger the contact patch, the more grip you have.
The diameter of the 285 60r20 tire size is 33.46 inches, and The diameter of the 285 65r20 tire size is 34.59 inches. The difference between these two sizes is about 1.12 inches or 3.2%. When choosing the correct tire size, the width and diameter of the tire are essential considerations.
Section Width
The section width of the 285 60r20 tire size is 11.22 inches, and the section width of the 285 65r20 tire size is 11.22 inches. The difference between these two sizes is nothing. Both tire size section widths are the same.
Wider tires provide better stability and handling but can also be more challenging to control. Narrower tires are easier to control, but they can’t provide the same level of stability and handling.
Circumference
The circumference of the 285 60r20 tire size is 105.13 inches, and the circumference of the 285 65r20 tire size is 108.66 inches. The difference between these two sizes is about 3.53 inches or 3.2%.
The circumference of a tire is important because it determines how far the tire will travel in one revolution. A larger circumference means that the tire will travel further in one revolution. This can be important for high-speed driving or vehicles that are driven frequently on long trips.
Revolutions Per Mile
The revolutions per mile of the 285 60r20 tire size are 602, and the revolutions per mile of the 285 65r20 tire size are 583. The difference between these two sizes is about 3.4%.
A higher revolution per mile means the tire will go around more in one mile. This can be important for high-speed driving or vehicles that are driven frequently on long trips.
Sidewall Height
The sidewall height of the 285 60r20 tire size is 6.73 inches, and the sidewall height of the 285 65r20 tire size is 7.29 inches. The difference between these two sizes is about 0.56 inches or 7.7%.
The taller the sidewall, the taller the tire. The taller the tire, the bigger the contact patch. The bigger the contact patch, the more grip you have. A taller sidewall also means that the tire will be more comfortable to ride on and absorb bumps and irregularities in the road better.
Wheel Size
As we mentioned earlier, the last number in tire size indicates the diameter of the wheel that the tire is designed to fit. In the case of 285 60r20 tires, the 20 indicates that the tire is designed to fit a 20-inch diameter wheel.
Construction Type
The construction type of a tire is indicated by the letter following the wheel size in the tire size. Both 285 60r20 and 285 65r20 tire sizes have the same construction type, which is indicated by the letter “r” in both sizes.
They are characterized by the fact that the cords in the tire run radially from the center of the tire to the edge. Radial tires are known for their excellent handling, comfort, and fuel economy.
Suitable Vehicle
The 285/60R20 tire size are only for RAM 2500 and 3500 trucks. These vehicles are bigger in size and can be used for both commercial and personal use, but also equipped to go off-road as needed. Therefore, they require a type of tire that can conquer any landscape or terrain.
The 285/65r20 tire size is popular among many truck drivers, especially those driving semi-trucks, dump trucks, RVs, and buses. Many truck drivers prefer the 285/65r20 tire size, as it provides good handling for both regional and urban driving environments. This size is also suitable for long haul applications.
Our Observation
The main difference between 285 60r20 and 285 65r20 tire sizes is the sidewall height. The 285 65r20 tire size is 0.56 inches or 7.7% taller than 285 60r20 tire size. The taller sidewall of the 285 65r20 tire size provides more grip and comfort, but it also makes the tire more difficult to control. When choosing the right tire size, the width and diameter of the tire are important considerations.
Conclusion
Wider tires provide better stability and handling but can also be more challenging to control. Narrower tires are easier to control, but they can’t provide the same level of stability and handling. We hope you found this blog post helpful. If you have any questions, please feel free to contact us. We’re always happy to help!
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