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275/40R18 Tire Size
All You Need to Know About 275/40R18 Tires
275/40R18 tires have a section width of 275 millimetres (mm), an aspect ratio of 40%, radial construction, and an 18-inch wheel diameter. Before buying tires sized 275/40R18, converting 275/40R18 measurements in inches, comparing them with similar tire sizes such as 245/45R18, and researching the best 275/40R18 tires helps drivers to shop for the correct tires.
What Are The Dimensions of a 275/40R18 Tire in Inches?
The 275/40R18 tire has a section width of approximately 10.83 inches and a sidewall height of 4.33 inches. The overall diameter of a 275/40R18 tire is about 26.66 inches, and the circumference is approximately 83.76 inches. The recommended rim width range for the 275/40R18 size is 9.0 to 11.0 inches. In inches, 275/40R18 tire size can be represented as 26.66" × 10.83" R18.
Most Recommended 275/40R18 Tires
Drivers choosing 275/40R18 tires typically look for a balance of performance, comfort, and reliability suited to their vehicle and driving conditions.
What Is The Difference Between 275/40R18 vs 245/45R18?
The main differences between 275/40R18 and 245/45R18 are the cross section width and aspect ratio. 275/40R18 is 275 mm wide and has an aspect ratio of 40%, while 245/45R18 is 245 mm wide and has an aspect ratio of 45%. 275/40R18 has a sidewall height of 110 mm and an overall diameter of 677 mm, whereas 245/45R18 has a sidewall height of 110.25 mm and an overall diameter of 677.7 mm. This means the 275/40R18 is 30 mm wider, has a 0.25 mm shorter sidewall, and an overall diameter 0.7 mm (≈0.03") smaller than the 245/45R18.
Can I use 245/45R18 instead of 275/40R18?
You can switch to 245/45R18 from 275/40R18, but you need to ensure that your rims are compatible. If your wheels are 9.0 inches wide, you're at the maximum for 245mm tires, which is the minimum for 275mm. This creates marginal compatibility. If your wheels are 9.5-11.0 inches wide, the 245mm tires are too narrow and should not be used. Most vehicles that come with 275/40R18 tires have 9.5-10.0 inch wheels, meaning that 245/45R18 is not a suitable option. Plus, the narrower tire has a lower load capacity and will impair handling and grip.
All You Need to Know About 275/40R18 Tires
275/40R18 tires have a section width of 275 millimetres (mm), an aspect ratio of 40%, radial construction, and an 18-inch wheel diameter. Before buying tires sized 275/40R18, converting 275/40R18 measurements in inches, comparing them with similar tire sizes such as 245/45R18, and researching the best 275/40R18 tires helps drivers to shop for the correct tires.
What Are The Dimensions of a 275/40R18 Tire in Inches?
The 275/40R18 tire has a section width of approximately 10.83 inches and a sidewall height of 4.33 inches. The overall diameter of a 275/40R18 tire is about 26.66 inches, and the circumference is approximately 83.76 inches. The recommended rim width range for the 275/40R18 size is 9.0 to 11.0 inches. In inches, 275/40R18 tire size can be represented as 26.66" × 10.83" R18.
Most Recommended 275/40R18 Tires
Drivers choosing 275/40R18 tires typically look for a balance of performance, comfort, and reliability suited to their vehicle and driving conditions.
What Is The Difference Between 275/40R18 vs 245/45R18?
The main differences between 275/40R18 and 245/45R18 are the cross section width and aspect ratio. 275/40R18 is 275 mm wide and has an aspect ratio of 40%, while 245/45R18 is 245 mm wide and has an aspect ratio of 45%. 275/40R18 has a sidewall height of 110 mm and an overall diameter of 677 mm, whereas 245/45R18 has a sidewall height of 110.25 mm and an overall diameter of 677.7 mm. This means the 275/40R18 is 30 mm wider, has a 0.25 mm shorter sidewall, and an overall diameter 0.7 mm (≈0.03") smaller than the 245/45R18.
Can I use 245/45R18 instead of 275/40R18?
You can switch to 245/45R18 from 275/40R18, but you need to ensure that your rims are compatible. If your wheels are 9.0 inches wide, you're at the maximum for 245mm tires, which is the minimum for 275mm. This creates marginal compatibility. If your wheels are 9.5-11.0 inches wide, the 245mm tires are too narrow and should not be used. Most vehicles that come with 275/40R18 tires have 9.5-10.0 inch wheels, meaning that 245/45R18 is not a suitable option. Plus, the narrower tire has a lower load capacity and will impair handling and grip.
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