Tire Size 225/75r16 vs 235/85r16
The 235/85r16 tire is slightly wider and taller, which gives it a larger diameter. This means the 235/85r16 tire will have a slightly higher speed rating and provide a smoother ride. However, the 235/85r16 tire will also have a slightly larger footprint, which can reduce fuel economy.
225/75r16 vs 235/85r16 Table
This comparison table will help you understand the main differences between 225 75r16 and 235 85r16 tires.
| Specification | 235/85r16 | 225/75r16 | Difference |
|---|---|---|---|
| Diameter | 31.73″ | 29.29″ | 2.44 inches |
| Width | 9.25″ | 8.86″ | 0.39 inches) |
| Circumference | 99.68″ | 92.01″ | 7.67 inches |
| Sidewall Height | 7.86″ | 6.64′ | 1.22 inches |
| Revolutions | 635.65 | 688.63 | 52.98 |
Alternative Tire Size For 235/85r16
To ensure compatibility, it is recommended that replacement tires have an overall diameter within 3% of the original tire’s diameter.
| Tire Size | Overall Diameter | Difference |
|---|---|---|
| 235/80R16 | 30.8″ (782 mm) | -3% |
| 345/55R16 | 30.9″ (786 mm) | -2.5% |
| 225/85R16 | 31″ (788 mm) | -2.2% |
| 295/65R16 | 31.1″ (790 mm) | -2% |
| 275/70R16 | 31.2″ (792 mm) | -1.7% |
| 265/75R16 | 31.7″ (804 mm) | -0.2% |
| 285/70R16 | 31.7″ (806 mm) | 0% |
| 225/90R16 | 32″ (812 mm) | 0.7% |
| 375/55R16 | 32.2″ (818 mm) | 1.5% |
| 265/80R16 | 32.7″ (830 mm) | 3% |
Alternative Tire Size For 225/75r16
A suitable replacement tire must have an overall diameter that is no more than 3% different from the original tire’s diameter.
| Tire Size | Overall Diameter | Difference |
|---|---|---|
| 225/70R16 | 28.4″ (722 mm) | -3% |
| 265/60R16 | 28.5″ (724 mm) | -2.7% |
| 215/75R16 | 28.7″ (728 mm) | -2.2% |
| 275/60R16 | 29″ (736 mm) | -1.1% |
| 235/70R16 | 29″ (736 mm) | -1.1% |
| 255/65R16 | 29.1″ (738 mm) | -0.8% |
| 225/70R17 | 29.4″ (748 mm) | 0.5% |
| 285/60R16 | 29.4″ (748 mm) | 0.5% |
| 215/80R16 | 29.5″ (750 mm) | 0.8% |
| 245/70R16 | 29.5″ (750 mm) | 0.8% |
| 315/55R16 | 29.6″ (752 mm) | 1.1% |
| 247/70R16 | 29.6″ (752 mm) | 1.1% |
| 235/75R16 | 29.8″ (758 mm) | 1.9% |
| 255/70R16 | 30.1″ (764 mm) | 2.7% |
| 275/65R16 | 30.1″ (764 mm) | 2.7% |
Overall Diameter
In comparing the 225/75R16 and the 235/85R16, the latter has a larger diameter (31.73 inches), providing approximately 7.7% more ground clearance compared to the 225/75R16, which has a diameter of 29.29 inches.
This extra clearance can be advantageous for off-road driving or navigating rough terrains. However, increasing tire diameter may result in a lower speedometer reading, which could potentially lead to underestimating your actual speed.
Section Width
The 235/85R16 has a wider tread (9.25 inches), providing improved traction due to an approximately 4.3% larger contact area with the road. This can enhance vehicle control during acceleration, braking, and cornering, albeit possibly generating more road noise.
Conversely, the 225/75R16 has a narrower width (8.86 inches), reducing the surface area in contact with the road and potentially diminishing grip, especially in slippery conditions.
Circumference
Circumference affects speedometer readings, similar to diameter. A larger circumference corresponds to a lower speedometer reading and vice versa.
The 235/85R16, with its larger circumference (99.68 inches), will give a lower speedometer reading than the 225/75R16, which has 92.01 inches.
Sidewall Height
The 235/85R16 tire has a taller sidewall (7.86 inches) than the 225/75R16 (6.64 inches). A taller sidewall typically results in a smoother ride as it absorbs more road bumps and irregularities.
It also provides increased traction on snowy or icy roads. However, a shorter sidewall, like the 225/75R16, gives the vehicle a sportier look, albeit potentially leading to a harsher ride due to the reduced cushioning effect.
Revolutions Per Mile
The 225/75R16 makes more revolutions per mile (688.63 RPM), which means it may wear out faster due to increased friction with the road surface. On the other hand, the 235/85R16 makes fewer revolutions per mile (635.65 RPM), potentially extending its lifespan by reducing wear and tear.
Rim Size
Both tires can be mounted on a 16″ rim, maintaining similar visual appeal. However, the 235/85R16’s rim width range is slightly narrower (6.0-7.0″) than the 225/75R16 (6.0-7.5″). A wider rim can give the car a sportier look, while a narrower rim can provide a more classic appearance.
Construction Type
As suggested by the ‘R’ in their specifications, both the 225/75R16 and the 235/85R16 use radial construction. Radial tires offer better fuel efficiency, ride comfort, and longevity than their bias-ply counterparts, making them a popular choice for many drivers.
How much taller is a 235/85r16 tire than a 225/75r16?
The height of a 235/85R16 tire is approximately 31.73 inches (or 805.9 mm). Comparatively, the height of a 225/75R16 tire is approximately 29.29 inches (or 743.9 mm). So, the 235/85R16 tire is about 2.44 inches (or 62 mm) taller than the 225/75R16 tire.
How much wider is a 235/85r16 tire than a 225/75r16?
In terms of width, a 235/85R16 tire measures about 9.25 inches (or 235 mm), while a 225/75R16 tire measures about 8.86 inches (or 225 mm). Therefore, the 235/85R16 tire is approximately 0.39 inches (or 10 mm) wider than the 225/75R16 tire.
Can I use 235/85r16 instead of 225/75r16?
When considering overall diameter, the 235/85R16 tire has a diameter of about 31.73 inches (or 805.9 mm), and the 225/75R16 tire has a diameter of 29.29 inches (or 743.9 mm). The difference between these two is approximately 2.44 inches or about 7.7%.
Given that this is more than the 3% difference that is typically recommended. Using a 235/85R16 tire instead of a 225/75R16 is not recommended without consulting a tire or vehicle professional.
Can I put a 235/85Rr16 on a 225/75r16?
The 235/85R16 tire has a recommended rim width range of 6.0-7.0″, while the 225/75R16 tire has a suggested range of 6.0-7.5″. Since these ranges overlap, it’s possible that a 235/85R16 tire could be mounted on a rim meant for a 225/75R16.
Our Observation
While the 225/75R16 and 235/85R16 have advantages, the right choice depends on your specific needs and driving conditions. If you often drive off-road or on rough terrains, the 235/85R16’s larger diameter, wider section width, and taller sidewall might be beneficial.
However, if you prioritize a smoother ride and longer tire life, the 225/75R16 may be a better option. Consider manufacturer recommendations, as changing tire sizes can affect vehicle handling and safety.
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