Tire Size 275/70r17 vs 265/65r17

275 70r17 vs 265 65r17

Tire size plays a significant role in a vehicle’s performance, fuel efficiency, and overall handling. We will compare two popular tire sizes: 275/70R17 and 265/65R17. We will discuss their differences and their effects on vehicle performance.

275/70r17 vs 265/65r17 Table

This chart provides a side-by-side comparison of the two different tire sizes, enabling you to determine which one is more suitable for your needs.

Diameter 30.56″32.16″1.59 inch
Width10.43″10.83″0.39 inch
Circum. 96.02″101.03″5.01 inch
Sidewall Height6.78″7.58″0.8 inch

Alternative Tire Size 275/70r17
If you’re searching for different tire sizes as a substitute for 275/70r17, several alternatives are at your disposal, and you can employ a table chart to compare and contrast them.

Tire SizeOverall DiameterDifference
305/60R1731.4″ (798 mm)-2.4%
245/75R1731.5″ (800 mm)-2.2%
285/65R1731.6″ (802 mm)-2%
265/70R1731.7″ (804 mm)-1.7%
235/80R1731.8″ (808 mm)-1.2%
345/55R1732″ (812 mm)-0.7%
255/75R1732″ (814 mm)-0.5%
305/65R1732.6″ (828 mm)1.2%
285/70R1732.8″ (832 mm)1.7%
235/85R1732.8″ (832 mm)1.7%
255/80R1733.1″ (840 mm)2.7%

Alternative Tire Size 265/65r17
There are several options available if you’re seeking alternative tire sizes to substitute for 265/65r17. Comparing them can be facilitated by using a table chart.

Tire SizeOverall DiameterDifference
275/60R1730″ (762 mm)-1.8%
235/70R1730″ (762 mm)-1.8%
255/65R1730.1″ (764 mm)-1.5%
225/75R1730.3″ (770 mm)-0.8%
285/60R1730.5″ (774 mm)-0.3%
245/70R1730.6″ (776 mm)0%
235/75R1730.9″ (784 mm)1%
255/70R1731.1″ (790 mm)1.8%
275/65R1731.1″ (790 mm)1.8%
305/60R1731.4″ (798 mm)2.8%

Overall Diameter
The overall diameter of a tire is the total height of the tire when mounted on a wheel and inflated. The 275/70R17 tire has an overall diameter of 32.16 inches (816.8 mm), while the 265/65R17 tire measures 30.56 inches (776.3 mm) in diameter.

This difference is 1.59 inches (40.5 mm), or 5.2% larger for the 275/70R17 tire. Larger diameter tires provide better ground clearance, which can be beneficial for off-road driving. However, larger tires may require modifications to a vehicle’s suspension and fender to ensure proper fitment.

Section Width
Section width is the tire’s width at its widest point when mounted and inflated. The 275/70R17 tire has a section width of 10.83 inches (275 mm), while the 265/65R17 tire has a width of 10.43 inches (265 mm).

The 275/70R17 tire is 0.39 inches (10 mm) or 3.8% wider than the 265/65R17 tire. A wider tire offers better traction and stability, especially when cornering. However, wider tires may also increase rolling resistance and negatively affect fuel economy.

The circumference of a tire is the distance around the outer edge. The 275/70R17 tire has a circumference of 101.03 inches (2566.05 mm), while the 265/65R17 tire’s circumference is 96.02 inches (2438.82 mm). The difference is 5.01 inches (127.23 mm) or 5.2%.

A larger circumference tire will cover more ground with each rotation, which can lead to better traction and stability. However, it may also result in less accurate speedometer and odometer readings without proper recalibration.

Revolutions per Mile
Revolutions per mile (or kilometer) represent the number of times a tire rotates in one mile (or kilometer) of distance. The 275/70R17 tire has 627.17 revolutions per mile (389.7 per km), while the 265/65R17 tire has 659.89 revolutions per mile (410.03 per km).

The difference of 32.72 fewer revolutions per mile (-20.33 per km) or a 5% decrease for the 275/70R17 tire. Lower revolutions per mile may lead to better fuel economy, as the tire covers more distance per rotation. However, it may also result in decreased acceleration and braking performance.

Sidewall Height
The sidewall height is the distance between the rim and the outer edge of the tire. The 275/70R17 tire has a sidewall height of 7.58 inches (192.5 mm), while the 265/65R17 tire’s sidewall height is 6.78 inches (172.25 mm).

The difference is 0.8 inches (20.25 mm) or 11.8% larger for the 275/70R17 tire. A taller sidewall can provide a smoother, more comfortable ride as it absorbs more road imperfections. Additionally, a larger sidewall can be advantageous for off-road driving, as it offers better protection for the wheel against rocks and other obstacles.

However, a taller sidewall may also decrease handling and cornering performance, as it allows for more flex and less precision during aggressive maneuvers.

Wheel Size
Both the 275/70R17 and 265/65R17 tires are designed to be mounted on a 17-inch wheel. While the wheel size remains the same for both tire sizes, the overall fitment and appearance of the vehicle may differ due to the differences in tire width, sidewall height, and overall diameter discussed earlier.

Construction Type
Both the 275/70R17 and 265/65R17 tires are radial construction types, as indicated by the “R” in their size designation. Radial tires provide better traction, fuel efficiency, and ride comfort than older bias-ply tires. The construction type does not differ between these two tire sizes, so their performance characteristics related to construction will be similar.

Our Observation
The larger 275/70R17 tire provides better ground clearance, a more comfortable ride, and potentially better fuel economy due to lower revolutions per mile. It may be a better choice for off-road or utility vehicles that require increased traction and durability.

On the other hand, the smaller 265/65R17 tire offers better handling and cornering performance, making it a more suitable choice for vehicles primarily driven on paved roads. It is also less likely to require modifications to the vehicle’s suspension or fender for proper fitment.

Ultimately, the best tire size will depend on your specific needs and preferences and the compatibility with your vehicle’s make and model. Always consult your vehicle’s owner’s manual and a professional tire installer for guidance on the appropriate tire size for your vehicle.

What Does 265 65r17 Tire Mean?

The first number in a tire size is the tire’s width in millimeters. The second number is the aspect ratio, which is the height of the tire sidewall as a percentage of the width. The third letter is the construction type, and the fourth number is the diameter of the wheel in inches.

In this example, 265 65r17 would mean that the tire’s width is 265 mm, the aspect ratio is 65%, it is a radial tire, and the diameter of the wheel is 17 inches. The letter “R” after the diameter of the wheel indicates that it is a radial tire.

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