Tire Size 285/70r17 vs 33×12 50r17
Do you know the main difference between 285 70r17 and 33×12 50r17 tire size? If you are an off-road enthusiast and looking to buy a new set of tires, then this blog is for you. There is no doubt that both these sizes are extensively used in heavy-duty SUVs and trucks.
285 70r17 vs 33×12 50r17 Table
By referring to this comparison table, you can quickly grasp the distinctions between 285/70R17 and 33×12.50R17 tire sizes.
| Feature | 285/75R17 | 33×12.5R17 | Difference |
|---|---|---|---|
| Diameter | 33.86 in | 32.83 in | 1.03 inch |
| Width | 11.22 in | 12.52 in | 1.3 inch |
| Circum. | 106.34 in | 103.07 in | 3.27 inch |
| Sidewall Height | 8.42 in | 9.38 in | 0.96 inch |
| Revolutions | 598.48 | 616.15 | 17.67 |
Alternative Tire Size for 285 70r17
This chart displays comparable tire sizes to 285/70r17, assisting you in finding appropriate choices for your vehicle.
| Tire Size | Overall Diameter | Difference |
|---|---|---|
| 235/80R17 | 31.8″ (808 mm) | -2.9% |
| 345/55R17 | 32″ (812 mm) | -2.4% |
| 255/75R17 | 32″ (814 mm) | -2.2% |
| 275/70R17 | 32.2″ (818 mm) | -1.7% |
| 305/65R17 | 32.6″ (828 mm) | -0.5% |
| 235/85R17 | 32.8″ (832 mm) | 0% |
| 255/80R17 | 33.1″ (840 mm) | 1% |
| 295/70R17 | 33.3″ (846 mm) | 1.7% |
Alternative Tire Size for 33×12 50r17
This chart provides alternative tire sizes that are equivalent to 33×12 50r17, helping you to identify suitable options for your vehicle.
| Tire Size | Diameter | Difference |
|---|---|---|
| 255/75R17 | 32.1″ | -2.73% |
| 275/70R17 | 32.2″ | -2.42% |
| 285/70R17 | 32.7″ | -0.91% |
| 305/65R17 | 32.6″ | -1.21% |
| 255/80R17 | 33.1″ | 0.3% |
| 285/75R17 | 33.8″ | 2.42% |
| 295/70R17 | 33.3″ | 0.91% |
| 305/70R17 | 33.8″ | 2.42% |
| 343/59/R17 | 33.0″ | 0% |
| 241/84/R17 | 33.0″ | 0% |
Overall Diameter
The 33×12 50r17 has a total diameter of 33 inches, while the 285 70r17 has an overall diameter of 32.71 inches. This means that the 33×12 50r17 will ride slightly higher than the 285 70r17, making it easier to control at higher speeds.
The difference in overall diameter also affects other performance aspects, such as braking and cornering. Since the 33×12 50r17 is larger, braking or turning corners will require more effort than the 285 70r17. However, this comes with other benefits, such as improved stability and comfort due to its greater height off the ground.
Section Width
Another number in tire size is the section width. This number refers to the width of the tire from one side to the other. The section width of a 285 70r17 tire is 11.22 inches. The section width of a 33×12 50r17 tire is 12.52 inches.
The section width will affect the amount of grip that the tire has as well as how stable the tire is when cornering. A wider tire will have more grip and be more stable when cornering than a narrower tire.
Circumference
The last number in tire size is the circumference. This is the distance around the outside of the tire. The circumference of a 285 70r17 tire is 102.76 inches. The circumference of a 33×12 50r17 tire is 103.75 inches.
The difference between those is 0.99 inches or 1%. A larger circumference tire will have a higher gear ratio and a lower speedometer reading than a smaller circumference tire.
Revolutions Per Mile
Regarding tire size, a key factor to consider is the revolutions per mile (RPM). Its size determines a tire’s RPM and affects a vehicle’s performance. The larger the tire, the fewer revolutions it will make in a mile; conversely, the smaller the tire, the more revolutions it will make.
The difference between 33×12 50r17 and 285 70r17 tires is not huge, but there are still some noticeable differences. A 285 70r17 will make 616 revolutions per mile, while a 33×12 50r17 will make approximately 610 revolutions per mile.
Sidewall Height
The sidewall height is the distance from the edge of the wheel to the top of the tire. The sidewall height of a 285 70r17 tire is 7.85 inches, and the sidewall height of a 33×12 50r17 tire is 8.01 inches. The difference between those is 0.16, or about 2% of the total height.
The sidewall height will affect the amount of flex that the tire has as well as the ride quality. A taller sidewall will have more flex and a smoother ride than a shorter sidewall.
Wheel Size
Rim size is the diameter of the wheel that the tire will fit on. The wheel size for a 285 70r17 tire is 17 inches, and the wheel size for a 33×12 50r17 tire is also 17 inches. The difference between those is 0%.
The wheel size will affect the width of the tire that can be used as well as the diameter of the tire. A larger wheel will allow for a wider tire but a smaller diameter tire. A smaller wheel will allow for a narrower tire but a taller diameter tire.
Construction Type
The “R” in the tire size means that it is a radial tire. This is the most common type of tire construction. The other type of tire construction is called bias ply. Bias-ply tires are not as common as radial tires. Radial tires have plies that go from the bead to the tread in a radial or side-by-side direction.
Conclusion
When it comes to deciding between 285 70r17 and 33×12 50r17, it depends on your personal preferences and needs. If you need a tire with a little more grip, the 33×12 50r17 may be a better option. If you’re looking for a tire with a larger diameter, the 285 70r17 may be a better option. Choose the tire size that is best for you and your vehicle.
We hope this article was helpful. Please feel free to share it with your friends or family if you find it useful. Also, don’t forget to check out our other articles for more tips and advice. Thanks for reading! Happy motoring!
What Does 33×12 50r17 Tire Mean?
The 33×12 50r17 tire size is a metric tire. This means that the first number, 33, is the tall or diameter of the tire. The second number, 12.50, is the width of the tire which is in inches. The last number, 17, is the diameter of the wheel that will fit this tire. This size is most commonly used on Jeeps, trucks, and SUVs. The “R” in size means that it is a radial tire.
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