Tire Size 255/80r17 vs 265/70r17
Selecting the right tire size is not only about the size that fits your car, but it is also about finding a size that fits your driving needs. We will compare two popular tire sizes, 255/80r17 and 265/70r17, and provide the necessary information and comparisons to help you make an informed decision.
255/80r17 vs 265/70r17 Table
You can gain a better understanding of how tire size 275/65R18 differs from tire size 265/70R18.
| Feature | 265/70r17 | 255/80r17 | Difference |
|---|---|---|---|
| Diameter | 31.61″ | 33.06″ | 1.46 (4.6%) |
| Width | 10.43″ | 10.04″ | 0.39 (3.8%) |
| Circum. | 99.29″ | 103.87″ | 4.58 (4.6%) |
| Sidewall Height | 7.3″ | 8.03″ | 0.73 (10%) |
| Revolutions | 638.1 | 609.99 | 28.11 (4.4%) |
Alternative Tire Size of 255/80r17
When replacing tires, ensure that the overall diameter of the new tires is within 3% of the original tires’ diameter.
| Tire Size | Overall Diameter | Difference |
|---|---|---|
| 275/70R17 | 32.2″ (818 mm) | -2.6% |
| 305/65R17 | 32.6″ (828 mm) | -1.4% |
| 235/85R17 | 32.8″ (832 mm) | -1% |
| 285/70R17 | 32.8″ (832 mm) | -1% |
| 295/70R17 | 33.3″ (846 mm) | 0.7% |
| 285/75R17 | 33.9″ (860 mm) | 2.4% |
| 305/70R17 | 33.9″ (860 mm) | 2.4% |
Alternative Tire Size 265/70R17
Replacement tires must have an overall diameter that is no more than 3% different from that of the original tires.
| Tire Size | Overall Diameter | Difference |
|---|---|---|
| 235/75R17 | 30.9″ (784 mm) | -2.5% |
| 255/70R17 | 31.1″ (790 mm) | -1.7% |
| 275/65R17 | 31.1″ (790 mm) | -1.7% |
| 305/60R17 | 31.4″ (798 mm) | -0.7% |
| 245/75R17 | 31.5″ (800 mm) | -0.5% |
| 285/65R17 | 31.6″ (802 mm) | -0.2% |
| 235/80R17 | 31.8″ (808 mm) | 0.5% |
| 345/55R17 | 32.0″ (812 mm) | 1.0% |
| 255/75R17 | 32.0″ (814 mm) | 1.2% |
| 275/70R17 | 32.2″ (818 mm) | 1.7% |
| 305/65R17 | 32.6″ (828 mm) | 3.0% |
Overall Diameter
The overall diameter of a tire is the distance across the widest point of the tire, including the tread. The 255/80r17 has an overall diameter of 33.1 inches, while the 265/70r17 has an overall diameter of 31.6 inches.
This means the 255/80r17 is slightly taller than the 265/70r17. The difference may not seem significant, but it can affect your vehicle’s ground clearance, speedometer accuracy, and suspension.
Tread Width
The tread width is part of the tire that comes into contact with the road. The 255/80r17 has a tread width of 10.04 inches, while the 265/70r17 has a tread width of 10.43 inches. This means that the 265/70r17 has a wider tread, which can provide better handling and traction on the road.
Rim Diameter
The rim diameter is the size of the wheel that the tire fits onto. The 255/80r17 and 265/70r17 have the same rim diameter of 17 inches. This means that both tires can fit on the same size wheels.
Sidewall Height
The sidewall height is the distance from the rim to the outer edge of the tire. The 255/80r17 has a sidewall height of 8.03 inches, while the 265/70r17 has a sidewall height of 7.3 inches. This means the 255/80r17 has a taller sidewall, which can provide better off-road performance and a smoother ride on rough terrain.
Circumference
The circumference is the distance around the tire. The 255/80r17 has a circumference of 103.87 inches, while the 265/70r17 has a circumference of 99.29 inches. This means that the 255/80r17 has a larger circumference, which can affect your speedometer accuracy and fuel efficiency.
Revolutions
The number of revolutions a tire makes per mile can affect your vehicle’s speedometer accuracy and overall performance. The 255/80r17 has revolutions per mile of 610, while the 265/70r17 has revolutions per mile of 638. This means that the 255/80r17 will travel fewer revolutions per mile, which can result in better fuel efficiency and a smoother ride.
Our Observation
Based on the information presented, the 265/70r17 has a wider tread. In contrast, the 255/80r17 has a taller sidewall and overall diameter. If you frequently drive on rough terrain and require better off-road performance, the 255/80r17 may be your better choice. However, if you prioritize better handling and traction on the road, the 265/70r17 may be the better option.
Selecting the right tire size for your vehicle is crucial for your safety, performance, and overall driving experience. It is essential to consider factors such as overall diameter, tread width, rim diameter, sidewall height, circumference, and revolutions when choosing a tire size. By taking the time to understand the differences between tire sizes and what they mean for your driving needs, you can make a well-informed decision and ensure that your vehicle operates optimally.
