Do you want to choose the best set of tires for your vehicle? Two popular tire sizes manufactured today are 30×9 50r15 and 235 75r15. This blog post will compare and explain the differences between the two tire sizes to help you select the right tire size for your vehicle needs.
This article “30×9 50R15 Vs 235 75R15 Tire Size” compares the two most popular tire sizes in the market. Both tires have gained great popularity and fame in the marketplace for their outstanding performance and value for money.
So, if you want to learn the major differences between these two best tire sizes in the market then go ahead and read on.
30×9 50R15 Vs 235 75R15 Tire Size: Table of comparison
Below is the table of major contents that shows all the major differences between these two tires. Take a look below and find out the differences at once: –
| 235 75R15 Tire Size | 30×9 50R15 Tire Size |
|---|---|
| Sidewall Height 6.94 inches | Sidewall Height 7.50 inches |
| Section Width 9.25 inches | Section Width 9.49 |
| Overall Diameter 28.88 inches | Overall Diameter 29.99 inches |
| Circumference 90.72 inches | Circumference 94.22 inches |
| Radius 14.44 inches | Radius 15.00 inches |
| Revs Per Mile 698 | Revs Per Mile 672 |
| Rim Width Range 6-8.5 inches | Rim Width Range 6.50-8.50 inches |
| Typical Weight 40 lbs | Typical Weight 38.8 lbs |
| Rim Diameter 15 inches | Rim Diameter 15 inches |
| Tread Depth 18/32 inches | Tread Depth 15/32 inches |
| Tire Type ( A-Radial Ply Tire) | Tire Type ( A-Radial Ply Tire) |
| Sidewall Letters Black/White | Sidewall Letters Black/White |
30×9 50R15 Vs 235 75R15 Tire Size: A detailed Discussion
Let us now discuss all the major differences that you have just witnessed above. This will help you learn a great deal about the two tires. Here it goes-
Sidewall Height
The sidewall height of a tire is an important factor to consider when selecting the right tire for your vehicle. It influences the tire’s overall diameter and its rolling circumference as well.
A larger sidewall height will result in a taller tire and a smaller sidewall height will result in a shorter tire.
The 235 75r15 tires have a sidewall height of 6.94 inches. Whereas, the 30×9 50r15 tires have a sidewall height of 7.50 inches. The difference between the two tires in this regard is 0.56 inches.
Section Width
The section width of a tire is an important factor to consider when selecting a tire for your vehicle, as it can impact the tire’s handling, performance, and compatibility with your vehicle.
The section width of the 235 75r15 tires is 9.25 inches. Whereas, the section width of the 30×9 50r15 tires is 9.49 inches. The difference between the two tires in this respect is 0.24 inches.
Overall Diameter
The overall diameter of a tire is the measurement of the tire’s height from the ground to the top of the tire’s tread, expressed in millimeters or inches. It is calculated by adding the height of the tire’s sidewall to the diameter of the rim.
The overall diameter of the 235 75r15 tires is 28.88 inches. Whereas, the overall diameter of the 30×9 50r15 tires is 29.99 inches. The difference between the two tires in this regard is 1.11 inches.
Circumference
The circumference of a tire influences the distance the tire travels with each revolution, which can affect the accuracy of the speedometer reading.
If the tire’s circumference is too large or too small, it can result in an inaccurate speedometer reading, which can lead to traffic violations or reduced resale value.
The circumference of the 235 75r15 tires is 90.72 inches. Whereas, the circumference for the 30×9 50r15 tires is 94.22 inches. The difference between the two tires in this case is 3.5 inches.
Radius
The radius of a tire is an important factor to consider when selecting a tire for your vehicle, as it can impact the vehicle’s handling, performance, and compatibility with the vehicle’s suspension system.
The radius of the 235 75r15 tires is 14.44 inches. Whereas, the radius of the 30×9 50r15 tires is 15.00 inches. The difference between the two tires in this respect is 0.56 inches.
Revs Per Mile
The revs per mile measurement is calculated by dividing the number of inches in a mile (63,360 inches) by the tire’s overall circumference in inches.
For example, if a tire has an overall circumference of 80 inches, its revs per mile would be 792 (63,360 divided by 80).
The RPM of the 235 75r15 tires is 698. Whereas, the RPM of the 30×9 50r15 tires is 672. The difference is 26.
Rim Width Range
It is an important factor to consider when selecting a tire for your vehicle, as it can affect the tire’s performance, safety, and longevity.
The rim width range of a tire is typically indicated on the sidewall of the tire, along with other specifications such as section width, aspect ratio, and overall diameter.
The rim width range for the 235 75r15 tires is 6-8.5 inches. Whereas, the rim width range for the 30×9 50r15 tires is 6.50-8.50 inches. The difference between the two is 0.50 inches.
Typical Weight
The weight of tires varies depending on several factors such as tire size, construction, and intended use.
Generally, larger tires with more robust construction and intended for heavy-duty applications will weigh more than smaller tires.
The typical weight for the 235 75r15 tires is 40 lbs. Whereas, the typical weight for the 30×9 50r15 tires is 38.8 lbs. The difference is only 1.2 inches.
Rim Diameter
The rim diameter of a tire refers to the diameter of the wheel rim onto which the tire is mounted. It is measured in inches and is an important factor to consider when selecting a tire for your vehicle.
It’s essential to select a tire with the correct rim diameter for your vehicle, as using a tire with a different rim diameter can compromise the vehicle’s handling, stability, and safety. Both tires 235 75r15 and 30×9 50r15 have the same rim diameter of 15 inches.
Tread Depth
Tread depth refers to the measurement of the vertical distance between the top of the tire’s tread and the bottom of its deepest grooves.
The tread on a tire provides the necessary traction for the vehicle to grip the road and maintain control, especially in wet or slippery conditions.
The tread depth for the 235 75r15 tires is 18/32 inches. Whereas, the tread depth for the 30×9 50r15 tires is 15/32 inches. The difference stands at 3 inches.
Tire Type
Radial tires are a type of tire construction that has become the most commonly and most popularly used type of tire in modern vehicles.
Radial tires offer several advantages over bias-ply tires. One of the main advantages is better fuel efficiency.
Both tires 235 75r15 and 30×9 50r15 have the same radial tire construction types.
30×9 50R15 Tire Size: What Does It Mean in Metrics?
If you pay close attention to the first number 30, it usually refers to the overall diameter of the tire in inches. If you try to convert the size in millimeters, it will be around 762 mm. Now let’s look at the second number which looks something like this 9.50.
This number refers to the cross-section width of the tire in inches. If you again convert the size in millimeters, it will be 241 mm.
The third letter is quite easy to guess, isn’t it? Yes, it stands for radial tire construction which is the most popular tire construction type in the market.
The final number 15 stands for the diameter of the rim (in inches). If you once again convert this in metrics, the result will be 381 mm.
Well, we have finally managed to decode or convert every number and letter in metrics. But have you ever wondered what the whole 30×9 50r15 tire size will look like in metrics? It will be equivalent to 241 79R15.
235 75R15 Tire Size: What Are the Close Equivalents?
After much calculation and research, I have come up with some equivalent tire sizes that we can very easily replace with the 235 75r15 tires. The list is shown in the form of a table below: –
| Equivalent Tire Sizes | Overall Diameter | Differences |
|---|---|---|
| 216/82/R15 | 29.0″ | 0.35% |
| 457/39/R15 | 29.0″ | 0.35% |
| 381/47/R15 | 29.0″ | 0.35% |
| 292/61/R15 | 29.0″ | 0.35% |
| 265/70R15 | 29.6″ | 2.42% |
| 225/75R15 | 28.3″ | -2.08% |
| 229/80/R15 | 29.5″ | 2.08% |
| 470/38/R15 | 29.0″ | 0.35% |
| 394/45/R15 | 29.0″ | 0.35% |
| 318/56/R15 | 29.0″ | 0.35% |
30×9 50R15 Tire Size: What Are the Close Equivalents?
Like the 235 75r15 tires, I have also prepared a list of some equivalents tires for 30×9 50r15 tire size as well Here goes the table: –
| 229/83/R15 | 30.0″ | 0% |
| 292/65/R15 | 30.0″ | 0% |
| 295/65R15 | 30.1″ | 0.33% |
| 229/80/R15 | 29.5″ | -1.67% |
| 255/70R15 | 29.1″ | -3% |
| 305/63/R15 | 30.0″ | 0% |
| 254/75/R15 | 30.0″ | 0% |
| 265/75R15 | 30.6″ | 2% |
| 265/70R15 | 29.6″ | -1.33% |
30×9 50R15 Vs 235 75R15 Tire Size: Another Table of Comparison
Guess what, this additional table contains some additional differences between these two tires that are crucial for you to learn. Want to find out? Read below: –
| Key Points | 235 75R15 Tire | 30×9 50R15 Tire | Differences |
|---|---|---|---|
| Max Load | 1985 lbs | 1990 lbs | 5 lbs |
| Max Speed | 99 mph | 112 mph | 13 mph |
| Max PSI | 50 | 50 | None |
| Aspect Ratio | 75 | 79 | 4 |
| Actual Speed | 62.14 mph | 59.83 mph | 2.31 mph |
| Speedometer Reading | 100 km/h | 96.29 km/h | 3.71 km/h |
| Speedometer Reading Status | Correct | slightly different | None |
Max Load
- It refers to the maximum weight that a tire can support.
- Overloading a vehicle can cause excessive wear on the tires.
- The maximum load of a tire is indicated by the load index.
The max load for the 235 75r15 tires is 1985 lbs. Whereas, the max load for the 30×9 50r15 tires is 1990 lbs. The difference between the two tires in this regard is only 5 lbs. This shows that the 30×9 50r15 tires can carry a slightly higher load.
Max Speed
- It refers to the highest safe driving speed of a vehicle.
- The maximum speed of a tire is indicated by the speed rating.
- The speed rating is typically located on the sidewall of the tire.
The max speed for the 235 75r15 tires is 99 mph. On the other hand, the max speed for the 30×9 50r15 tires is 112 mph. The difference between the two tires in this respect is 13 mph.
Max PSI
- It refers to the highest air pressure that a tire can safely hold.
- Overinflated tires can cause a harsh ride and can lead to premature tire wear.
- Extreme temperatures can cause tire pressure to fluctuate.
It’s important to ensure that the tire pressure matches the vehicle manufacturer’s recommended PSI, which can be found in the owner’s manual or on a sticker located on the driver’s side door jamb. For both tires, the max psi is the same which is 50.
Aspect Ratio
- It is the ratio of the tire’s sidewall height to its section width.
- Tires with a higher aspect ratio typically provide a smoother ride.
- Modifying the aspect ratio of a tire can affect the vehicle’s handling.
The aspect ratio of the 235 75r15 tires is 75. Whereas, the aspect ratio of the 30×9 50r15 tires is 79. The difference between the two tires in this regard is 4. The 30×9 50r15 tires have a higher profile and a higher aspect ratio.
Actual Speed
- Overinflated tires can increase the actual speed of the tires.
- Underinflated tires can decrease the actual speed of the tires.
- Modifying the tire size or aspect ratio can affect the actual speed of the tires.
The actual speed for the 235 75r15 tires is 62.14 mph. On the other hand, the actual speed for the 30×9 50r15 tires is 59.83 mph. The difference between the two tires in this regard is 2.31 mph.
30×9 50R15 Vs 235 75R15 Tire Size- What We Really Think
When you compare the 30×9 50r15 tire size to the 235 75r15 tire size, it’s important to consider a few key differences. The 30×9 50r15 tire size is taller and narrower than the 235 75r15, with a shorter sidewall due to its 50r15 aspect ratio.
This can impact comfort and protection against road hazards. However, the 30×9 50r15 tire has a larger diameter, which can provide better off-road performance and ground clearance.
Ultimately, the best choice will depend on your vehicle and driving needs. Consult a tire professional or refer to your owner’s manual to determine the appropriate tire size.
Also Read: 255 75r15 vs 31×10 5r15 Tire Size – The Ultimate Guide
Frequently Asked Questions
Vehicle owners and enthusiasts are quite eager to learn various important facts about different types of tires available in the market. They often ask many questions. Some of the most frequently asked questions are given below: –
Can I Replace My 235 75R15 Tires with 30×9 50R15 Tires?
It is possible to replace 235 75r15 tires with 30×9 50r15 tires, but it is vital to make sure that the new tires are compatible with your vehicle and meet the manufacturer’s recommended tire size and load capacity.
What Are the Advantages of the 235 75R15 Tire Size?
The 235 75r15 tire size has a larger overall diameter, which can improve ground clearance and provide a smoother ride on rough terrain. It may also offer better stability and handling on the highway.
How Do I Know If a Tire Size Is Compatible With My Vehicle?
You can check your vehicle’s owner’s manual or consult with a tire professional to determine the manufacturer’s recommended tire size and load capacity for your specific vehicle.
What Other Factors Should I Consider When Choosing Tires for My vehicle?
Other factors to consider when choosing tires for your vehicle include the type of driving you will be doing, the weather and road conditions in your area, your budget, and the tire’s tread pattern and durability.
Final Thoughts
Choosing between the right tires for your vehicle is tiresome work. Not everyone can make the best choices if there is little to no knowledge available about them. But not in this case though.
In this article “ 30×9 50R15 Vs 235 75R15 Tire Size” I have tried my best to deliver all the expertise I possess to give you the right information regarding these two types of tires available in the market.
But it is up to you really to choose the tire which will suit your vehicle perfectly. If you still feel unsure, you can always check this out.
