Tire Size 275/55r20 vs 275/65r20
One of the most significant is the tire size, which is indicated by a series of numbers and letters on the sidewall. We will be focusing on the 275/55r20 and 275/65r20 tire size. We aim to provide readers with the necessary information and comparisons to help them make an informed decision.
275/55r20 vs 275/65r20 Table
| Feature | 275/55r20 | 275/65r20 | Difference |
|---|---|---|---|
| Overall Diameter | 31.9 inch | 34.1 inch | 2.2 inch |
| Tread Width | 10.8 inch | 11.0 inch | 0.2 inch |
| Rim Diameter | 20 inch | 20 inch | Same |
| Sidewall Height | 5.9 inch | 7.0 inch | 1.1 inch |
| Circumference | 100.2 inch | 107.0 inch | 6.8 inch |
| Revolutions | 657 rev/mi | 617 rev/mi | 40 rev/mi |
Alternative Tire Size For 275/55r20
The table above shows the tire size, overall diameter, and difference in percentage between each tire size and the tire with the smallest overall diameter in the list (255/55R20).
| Tire Size | Overall Diameter | Difference |
|---|---|---|
| 255/55R20 | 31″ (788 mm) | -2.7% |
| 285/50R20 | 31.3″ (794 mm) | -2% |
| 245/60R20 | 31.6″ (802 mm) | -1% |
| 295/50R20 | 31.7″ (804 mm) | -0.7% |
| 255/60R20 | 32″ (814 mm) | 0.5% |
| 305/50R20 | 32″ (814 mm) | 0.5% |
| 285/55R20 | 32.4″ (822 mm) | 1.5% |
| 315/50R20 | 32.4″ (824 mm) | 1.7% |
| 265/60R20 | 32.5″ (826 mm) | 2% |
| 295/55R20 | 32.8″ (832 mm) | 2.7% |
| 325/50R20 | 32.8″ (834 mm) | 3% |
Alternative Tire Size For 275/65r20
The table shows the tire size, overall diameter in inches and millimeters, and the percentage difference in overall diameter compared to a reference tire.
| Tire Size | Overall Diameter | Difference |
|---|---|---|
| 305/55R20 | 33.2″ (844 mm) | -2.5% |
| 375/45R20 | 33.3″ (846 mm) | -2.3% |
| 285/60R20 | 33.5″ (850 mm) | -1.8% |
| 295/60R20 | 33.9″ (862 mm) | -0.5% |
| 355/50R20 | 34″ (864 mm) | -0.2% |
| 305/60R20 | 34.4″ (874 mm) | 0.9% |
| 335/55R20 | 34.5″ (876 mm) | 1.2% |
| 285/65R20 | 34.6″ (878 mm) | 1.4% |
| 315/60R20 | 34.9″ (886 mm) | 2.3% |
Overall Diameter
The first aspect we’ll look at is the overall diameter of the tires. The 275/55r20 tires have an overall diameter of 31.9 inches, while the 275/65r20 tires have a diameter of 34.1 inches.
This means that the 275/65r20 tires are taller than the 275/55r20 tires. The overall diameter of a tire is important because it affects the speedometer accuracy and the distance traveled per revolution.
Tread Width
The tread width of a tire is the distance between the outer edges of the tire tread. The 275/55r20 tires have a tread width of 10.8 inches, while the 275/65r20 tires have a tread width of 11.0 inches. This means that the 275/65r20 tires have a slightly wider tread, which can provide better traction and stability on the road.
Rim Diameter
The rim diameter is the measurement of the wheel on which the tire is mounted. Both the 275/55r20 and 275/65r20 tires have a rim diameter of 20 inches, which means they can be mounted on the same size wheel.
Sidewall Height
The sidewall height is the measurement from the wheel rim to the outer edge of the tire. The 275/55r20 tires have a sidewall height of 5.9 inches, while the 275/65r20 tires have a sidewall height of 7.0 inches.
This means that the 275/65r20 tires have a taller sidewall, which can provide a smoother ride and better protection against potholes and other road hazards.
Circumference
The circumference of a tire is the distance around the outer edge of the tire. The 275/55r20 tires have a circumference of 100.2 inches, while the 275/65r20 tires have a circumference of 107.0 inches. This means that the 275/65r20 tires have a longer circumference, which can affect the speedometer reading and the vehicle’s fuel economy.
Revolutions
The number of revolutions a tire makes in a mile can affect the vehicle’s speedometer accuracy and fuel economy. The 275/55r20 tires make 657 revolutions per mile, while the 275/65r20 tires make 617 revolutions per mile.
This means that the 275/55r20 tires will make more revolutions per mile, resulting in a slightly higher speedometer reading and lower fuel economy.
Our Observation
In summary, each of the tire sizes, 275/55r20 and 275/65r20, has its own set of pros and cons. The 275/55r20 tires have a smaller overall diameter, a slightly narrower tread, and a shorter sidewall height, which can provide better handling and fuel efficiency due to their reduced weight and rolling resistance.
The 275/65r20 tires have a larger overall diameter, a wider tread, and a taller sidewall height, which can offer a more comfortable ride and better protection against road hazards due to their larger contact patch and more cushioning. If you prioritize fuel efficiency and handling, the 275/55r20 tires may be the better option. However, if you value comfort and protection on rough roads, the 275/65r20 tires may be a better choice.
