30×9 50r15 vs 235 75r15 Tire Size
Let’s start with the basics. It’s common knowledge that the tire width, rim size and the inflation pressure directly impact your vehicle’s handling on any given surface. However, what you might not know is that these three factors also have a significant effect on your car’s acceleration, top speed and fuel efficiency. If you want to know more about car tire dimensions and their role in performance, read on!
30×9 50r15 vs 235 75r15 Table
235 75r15 | 30x9 50r15 |
Overall Diameter 28.88 inches | Overall Diameter 29.99 inches |
Width 9.25 inches | Width 9.49 inche |
Sidewall Height 6.94 inches | Sidewall Height 7.5 inches |
Radial Tire (A Radial-Ply Tire) | Radial Tire (A Radial-Ply Tire) |
Rim Size 18 inches | Rim Size 18 inches |
Circumference 90.72 inches | Circumference 94.22 inches |
Revs Per Mile 698 | Revs Per Mile 672 |
What Does 30×9 50r15 Tire Mean?
The “30” in the 30×9 50r15 means the diameter of the tire in inches. The 9.50 means that the tire’s width is nine and a half inches. The “R” stands for radial, which is the most common type of tire. The 15 means that the tire is designed to fit a 15-inch wheel.
The 30x950r15 size is a popular choice for off-road vehicles, as the wider width provides better traction in mud and sand. The taller sidewall also helps to absorb shocks from bumps and potholes.
What Does 235 75r15 Tire Mean?
The “235” in 235 75r15 means the width of the tire in millimeters. The “75” means that the sidewall height is 75% of the width. The “R” stands for radial, and the 15 indicates that the tire is designed to fit a 15-inch wheel.
The 235 75r15 size is a popular choice for on-road vehicles, as the narrower width provides better handling and fuel economy. The shorter sidewall also means that the tire is less likely to be damaged by potholes and other road hazards.
Tire Diameter
One of the most important things to consider when choosing a tire size is the diameter. The diameter is the width of the tire from one side to the other. The 30x950r15 has a diameter of 30 inches, while the 235 75r15 has a diameter of 28.88 inches.
The difference in the diameter is 1.11 inches or 3.9%. A larger diameter tire will have more contact with the ground, which means that it will have more traction. However, a larger diameter tire will also be heavier and require more power to turn.
Section Width
The section width is the width of the tire from one side to the other. The 30x950r15 has a section width of 9.50 inches, while the 235 75r15 has a section width of 9.25 inches.
The difference in section width is 0.24 inches or 2.6%. A wider tire will have more contact with the ground, which means that it will have more traction. However, a wider tire will also be heavier and will require more power to turn.
Circumference
The circumference is the distance around the outside of the tire. The 30x950r15 has a circumference of 94.22 inches, while the 235 75r15 has a circumference of 90.72 inches. The difference in circumference is 3.5 inches or 3.9%.
Revolutions Per Mile
The revolutions per mile (RPM) is the number of times the tire will rotate in one mile. The 30x950r15 has an RPM of 672, while the 235 75r15 has an RPM of 698. The difference in RPM is 26 miles or 3.7%.
A higher RPM means that the tire will have to work harder, which will result in increased wear and tear. However, a higher RPM also means that the tire will have more traction.
Sidewall Height
The sidewall height is the distance from the edge of the tire to the wheel. The 30x950r15 has a sidewall height of 7.50 inches, while the 235 75r15 has a sidewall height of 6.94 inches. The difference in sidewall height is 0.56 inches or 8%. A taller sidewall will provide a smoother ride, as it will absorb more of the bumps and potholes in the road.
Wheel Size
Rim size is the diameter of the wheel that the tire is designed to fit. The 30x950r15 is intended to provide a 15-inch wheel, while the 235 75r15 fits a 15-inch wheel. So both can fit 15 inches rims. The difference in wheel size is 0 inches.
Construction Type
The construction type is how the tire is made. The 30x950r15 is a radial tire, while the 235 75r15 is also a radial tire. Radial tires are the most common type of tire, as they provide a good balance of traction, comfort, and durability.
Our Observation
The 30x950r15 is a better choice for off-road vehicles, as it has a wider width and taller sidewall. The 235 75r15 is a better choice for on-road vehicles, as it has a narrower width and shorter sidewall.
If you are unsure of which size to choose, we recommend that you consult with a professional. You can also use our tire size calculator to help you make your decision. Now that you know the difference between 30x950r15 and 235 75r15, which size do you think is right for you? Let us know in the comments below!
Related Article
