285/55r20 vs 285/60r20 Tire Size
There are many different tire sizes available. Each tire size has its pros and cons, and you must understand which one will suit the requirements of your car before buying a new set of tires. Tire size is measured in several ways, and it’s not always easy to precisely understand which one you require.
The following article will explain everything you need to know about 285 55r20 vs 285 60r20 Tire Size, as well as give some examples of standard tire sizes so that you can determine which suits your needs best.
285 55r20 vs 285 60r20 Table
285 60r20 | 285 55r20 |
Overall Diameter 33.46 inches | Overall Diameter 32.34 inches |
Width 11.22 inches | Width 11.22 inche |
Sidewall Height 6.73 inches | Sidewall Height 6.17 inches |
Radial Tire (A Radial-Ply Tire) | Radial Tire (A Radial-Ply Tire) |
Rim Size 18 inches | Rim Size 18 inches |
Circumference 105.13 inches | Circumference 101.61 inches |
Revs Per Mile 602 | Revs Per Mile 623 |
What Does 285 60r20 tire Mean?
The first number in a 285 60r20 tire size is the width of the tire in millimeters. In this case, the width of the tire is 285 mm. The second number is the aspect ratio. This is the height of the sidewall as a percentage of the width.
In this case, the sidewall height is 60% of the width, or 171 mm. The third number is the wheel diameter in inches. In this case, the wheel diameter is 20 inches. The letter “R” indicates the tire construction type of the tire.
Tire Diameter
How tall your tire is will affect a lot of things. The most important is the fitment of your car, or how well the tire will fit in the wheel well. A taller tire will have a larger diameter and be more comprehensive than a shorter one.
A wider tire will have a better grip on the road and will offer more stability. In comparison, a narrower tire will be lighter and will offer less rolling resistance. The height of the 285 60r20 tire size is 33.46 inches, while the height of the 285 55r20 tire size is 32.34 inches. The difference between those is 1.12 inches or 3.5%.
Section Width
The section width of a tire is the width from one sidewall to the other. The width of the 285 60r20 tire size is 11.22 inches, while the width of the 285 55r20 tire size is 11.22 inches. The difference between those tires is 0.
As you can see, there is no significant difference in width between these two sizes. However, the 285 60r20 tire size is slightly wider, offering better stability and grip.
Circumference
The circumference of a tire is the distance around the outside of the tire. The circumference of the 285 60r20 tire size is 105.13 inches, while the circumference of the 285 55r20 tire size is 101.61 inches. The difference between those is about 3.53 inches or 3.5%.
While the difference in circumference may not seem like much, it can significantly affect how your car handles. A smaller circumference tire will have a shorter contact patch with the ground, which can lead to less grip.
Revolutions Per Mile
The number of revolutions per mile (RPM) is the number of times the tire will go around in one mile. The RPM of the 285 60r20 tire size is 602, while the RPM of the 285 55r20 tire size is 623. The difference between those is about 21 RPM or 3.4%.
The RPM of a tire can affect fuel economy and how your car drives. A higher RPM tire will have a shorter contact patch with the ground, which can lead to less grip.
Sidewall Height
The sidewall height of the 285 60r20 tire size is 6.73 inches, while the sidewall height of the 285 55r20 tire size is 6.17 inches. The difference between those is about 0.56 inches or 9.1%.
A tire’s sidewall height can affect how your car handles it. A taller sidewall will offer more cushioning and a smoother ride. In comparison, a shorter sidewall will offer less cushioning and a firmer ride.
Wheel Size
The wheel size of the 285 60r20 tire size is 20 inches, while the wheel size of the 285 55r20 tire size is 20 inches. The difference between those is 0 inches. As you can see, the wheel size is the same for both tire sizes.
Construction Type
The 285 60r20 tire size construction type is “R,” which refers to the radial tire. At the same time, the construction type of the 285 55r20 tire size is also “R,” which indicates the radial tire too. Both are radial tires. Radial tires are the most common type of tire and are used on most passenger cars, SUVs, and light trucks.
Our Observation
The sidewall height is the main difference between the 285 55r20 and 285 60r20 tire sizes. The 285 60r20 tire size is 0.56 inches or 9.1% taller than the 285 55r20 tire size.
The taller sidewall of the 285 60r20 tire size will offer more cushioning and a smoother ride. But it may also lead to less grip and stability. It depends on your driving needs and preferences.
Conclusion
If you need a tire that offers more cushioning and a smoother ride, go for the 285 60r20 tire size. But if you need a tire that can provide more grip and stability, go for the 285 55r20 tire size.
We hope this blog post helps you decide which tire size is better for you! Thanks for reading! Please feel free to comment below if you have any questions or need more help! We’re always happy to assist. 🙂
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