Tire Size 265/60r18 vs 265/70r18
Tire selection can be overwhelming, with so many different sizes and types available in the market. However, understanding the basics of tire size can go a long way in helping you make an informed decision. In this article, we’ll compare two popular tire sizes – 265/60r18 and 265/70r18 – to help you determine which one suits your needs best.
265/60r18 vs 265/70r18 Table
This table offers a side-by-side comparison of tire sizes 265/60r18 and 265/70r18 to assist you in understanding the differences between them.
| Feature | 265/60r18 | 265/70r18 | Difference |
|---|---|---|---|
| Diameter | 30.52″ | 32.61″ | 2.09″ (6.8%) |
| Width | 10.43″ | 10.43″ | Same |
| Circumference | 95.88″ | 102.44″ | 6.56″ (6.8%) |
| Sidewall Height | 6.26″ | 7.3″ | 1.04″ (16.7%) |
| Revolutions per mile | 660.82 | 618.53 | -42.29 (-6.4%) |
Alternative tire size of 265/70r18
To ensure that the performance of your vehicle remains unaffected and that the speedometer and odometer readings stay accurate, it is advisable to choose an alternative tire size with an overall diameter that is no more than 3% different from the original tire’s diameter.
| Tire Size | Overall Diameter | Difference |
|---|---|---|
| 235/75R18 | 31.9″ (809 mm) | -2.4% |
| 255/70R18 | 32.1″ (815 mm) | -1.7% |
| 275/65R18 | 32.1″ (815 mm) | -1.7% |
| 305/60R18 | 32.4″ (823 mm) | -0.7% |
| 285/65R18 | 32.6″ (827 mm) | -0.2% |
| 375/50R18 | 32.8″ (833 mm) | 0.5% |
| 295/65R18 | 33.1″ (841 mm) | 1.4% |
| 275/70R18 | 33.2″ (843 mm) | 1.7% |
| 325/60R18 | 33.3″ (847 mm) | 2.2% |
| 305/65R18 | 33.6″ (853 mm) | 2.9% |
Alternative tire size of 265/60r18
There are a few alternative tire sizes that can be used as a replacement for a 265/60R18 tire. It’s important to note that any alternative size should be carefully selected to ensure it is within 3% of the original tire’s overall diameter.
| Tire Size | Overall Diameter | Difference |
|---|---|---|
| 165/90R18 | 29.7″ (755 mm) | -2.6% |
| 275/55R18 | 29.9″ (759 mm) | -2.1% |
| 235/65R18 | 30″ (763 mm) | -1.5% |
| 255/60R18 | 30″ (763 mm) | -1.5% |
| 285/55R18 | 30.4″ (771 mm) | -0.5% |
| 175/90R18 | 30.4″ (773 mm) | -0.3% |
| 245/65R18 | 30.5″ (775 mm) | 0% |
| 275/60R18 | 31″ (787 mm) | 1.5% |
| 235/70R18 | 31″ (787 mm) | 1.5% |
| 255/65R18 | 31.1″ (789 mm) | 1.8% |
| 225/75R18 | 31.3″ (795 mm) | 2.6% |
Overall Diameter
The overall diameter of a tire refers to the distance from the ground to the top of the tire, including the tread. In this case, the 265/60r18 has an overall diameter of 30.5 inches, while the 265/70r18 has an overall diameter of 32.6 inches. This means that the 265/70r18 is taller than the 265/60r18, which can affect your vehicle’s ride height and ground clearance.
Tread Width
The tread width is the distance between the outer edges of the tire’s tread. In this case, both tire sizes have a tread width of 265 millimeters, which is the first number in the size sequence.
Rim Diameter
The rim diameter is the measurement in inches of the wheel the tire fits onto. Both the 265/60r18 and 265/70r18 sizes are designed to fit an 18-inch wheel.
Sidewall Height
The sidewall height refers to the distance between the rim and the outer edge of the tire. In this case, the 265/60r18 has a sidewall height of 159 millimeters, while the 265/70r18 has a sidewall height of 185 millimeters. The higher sidewall height of the 265/70r18 can provide additional cushioning and protection against impacts.
Circumference
The circumference of a tire is the distance around the tire. In this case, the 265/60r18 has a circumference of 96.1 inches, while the 265/70r18 has a circumference of 102.5 inches. This means that the 265/70r18 will cover more distance with each revolution, which can affect speedometer accuracy and fuel economy.
Revolutions
The number of revolutions a tire makes per mile is an essential factor to consider, as it can affect speedometer accuracy and fuel economy. In this case, the 265/60r18 makes 669.5 revolutions per mile, while the 265/70r18 makes 628.4 revolutions per mile.
Our Observation
After comparing the 265/60r18 and 265/70r18 tire sizes, it’s clear that there are significant differences between them. The 265/70r18 has a taller overall diameter, higher sidewall height, and larger circumference than the 265/60r18. However, the 265/60r18 has a higher number of revolutions per mile, which can result in improved speedometer accuracy and fuel economy.
In conclusion, when it comes to choosing between the 265/60r18 and 265/70r18 tire sizes, it ultimately depends on your specific needs and preferences. If you prioritize ground clearance and protection against impacts, the 265/70r18 is the better option.
On the other hand, if you prioritize speedometer accuracy and fuel economy, the 265/60r18 is the better choice. It’s also worth noting that other factors, such as the type of vehicle and driving conditions, can influence your tire selection. Therefore, it’s important to consider all of these factors before making a final decision.
Meet Caitlin McCormack, a Tire Size Expert and Blogger Passionate About Everything Related to Tires. With Years of Experience in the Tire Industry, Caitlin Has Become an Expert in Tire Sizes and Their Impact on Vehicle Performance.