Can I Replace 235 Tires with 245? Facts Revealed!

Can I Replace 235 Tires with 245

When it comes to your vehicle’s tires, making the right choice is crucial for optimal performance, safety, and efficiency. One common question that arises among vehicle owners is:

Can I Replace 235 Tires with 245? Yes, you can switch out your 235 tires for 245 tires. But there are a few things to think about: Upgrading from 235 to 245 tires will result in a 0.5 mph change in speed. 235 tires have a little lower weight carrying ability than 245 tires, so upgrading to larger tires will boost this capacity. The 245 tire is 0.3 inches wider than the 235 tire. In comparison to the 235 tire, this could cause the tire to protrude slightly over the rim.

It’s crucial to remember that, for safety purposes, if only two tires need to be replaced, they should go on the back axle. Additionally, it is advised to speak with a qualified mechanic or tire expert if you are unclear about whether you should change your tires or what size to use.

Key Takeaways:

  • Choosing the right tire size is crucial for vehicle performance, safety, and efficiency.
  • Tire sizes are represented by numbers indicating width, aspect ratio, construction, and wheel diameter.
  • Changing tire sizes can impact traction, fuel efficiency, handling, and speedometer accuracy.
  • Factors to consider before replacing include vehicle compatibility, wheel size, and speedometer calibration.
  • Advantages of upgrading to 245 tires include improved traction, handling, and aesthetics.
  • Drawbacks include reduced fuel efficiency, altered speedometer readings, and potential clearance issues.
  • Consultation with professionals and checking compatibility is advised before making the switch.
  • Decision to change tire size depends on individual priorities, considering benefits and drawbacks.

Understanding Tire Sizes: The Basics

What Do the Numbers Mean?

Tire sizes consist of a series of numbers, such as 235/65R18. The first number, in this case, 235, represents the tire’s width in millimeters. The second number, 65, indicates the aspect ratio or the tire’s height as a percentage of its width. The “R” stands for radial construction, and the final number, 18, indicates the diameter of the wheel in inches.

The Impact of Tire Size Differences

Changing tire sizes, such as replacing 235 tires with 245, can have various effects on your vehicle. A wider tire, like a 245, may provide better traction due to the increased contact area with the road. However, this change might also impact other aspects, such as fuel efficiency, handling, and speedometer accuracy.

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Can You Replace 235 Tires with 245?

Consideration Factors

Before making the switch, several factors need to be considered:

1. Vehicle Compatibility

Check your vehicle’s manufacturer guidelines to see if using wider tires is recommended. Certain vehicles are designed to accommodate specific tire sizes, and deviating from these recommendations might lead to issues with suspension, steering, and overall performance.

2. Wheel Size

Ensure that the 245 tires are compatible with your current wheel size. Installing tires that are too wide for your wheels can result in poor tire fitment and reduced safety.

3. Speedometer and Odometer Accuracy

Switching to larger or smaller tires can affect the accuracy of your speedometer and odometer readings. This can lead to potential legal and mechanical issues if not properly calibrated.

Advantages of Upgrading to 245 Tires

1. Improved Traction

Wider tires can provide enhanced traction, particularly in wet or snowy conditions. This can contribute to a safer driving experience.

2. Enhanced Handling

A wider tire footprint can lead to better cornering stability and improved handling around curves.

3. Aesthetics

Wider tires can give your vehicle a more aggressive and sporty appearance, enhancing its overall look.

Potential Drawbacks of the Change

1. Reduced Fuel Efficiency

Wider tires generally have more rolling resistance, which can result in decreased fuel efficiency over time.

2. Altered Speedometer Readings

As mentioned earlier, changing tire sizes can lead to inaccurate speedometer readings, potentially causing legal issues and affecting driving habits.

3. Clearance Issues

Wider tires might rub against the wheel well or suspension components, leading to potential clearance issues and damage.

tire bridgestone sculptures rubber roll over automobile
235 18 Tires:245 18 Tires:
  • Section width: 9.25″
  • Rim Diameter: 18″
  • Rim width range: 6.50-8.50”
  • Overall Diameter: 27″
  • Rim Width: 9.3″
  • Wheel: 18″ x 6.5-8.5″
  • Sidewall height: 4.63.”
  • Circum: 85.6″
  • Revs/Mile: 740
  • Aspect Ratio: 60
  • Section width: 9.65″
  • Rim Diameter: 18″
  • Rim width range: 7.00-8.50″
  • Overall Diameter: 27.65″
  • Rim Width: 9.6″
  • Wheel: 18″ x 7-8.5″
  • Sidewall height: 4.8″
  • Circum: 86.8″
  • Revs/Mile: 730
  • Aspect Ratio: 60

Comparing 235 and 245 Tires

Let’s now turn our attention to the comparison of 235 and 245 tires. The breadth of the tire is the main distinction. With a difference of 10 millimeters, a 235 tire is narrower than a 245 tire.

A wider tire is chosen when a 235 tire is replaced with a 245 tire. Consideration must be given to both the potential benefits and negative effects of this adjustment.

P245 70r16   Vs   P235 70r16

Diameter inches (mm):29.5 (749.4)28.95 (735.4)
Width inches (mm):9.65 (245)9.25 (235)
Circum. inches (mm): 92.69 (2354.31)90.96 (2310.33)
Sidewall Height (mm):6.75 (171.5)6.48 (164.5)
Revolutions per mile:683.57 (424.75)696.59 (432.84)

As you can see above, there are some specifications for the two different sizes of tires.

Considerations and Potential Implications

While there are advantages to replacing 235 tires with 245, it’s essential to consider the potential implications before making a decision. Here are some factors to keep in mind:

  • Wheel Well Clearance: A wider tire might have a slightly different fitment within the wheel well. It is crucial to ensure that the new tire size does not rub against any suspension components or the wheel well itself. Insufficient clearance could lead to damage or compromised handling.
  • Speedometer and Odometer Accuracy: A change in tire size can affect the accuracy of the speedometer and odometer readings. A wider tire circumference might result in a slightly slower speedometer reading and an overestimation of distance traveled. It is advisable to consult a professional or refer to specialized tools to recalibrate these measurements if necessary.
  • Fuel Efficiency: Wider tires often have increased rolling resistance, which can impact fuel efficiency. While the difference may not be significant, it’s worth considering for those concerned about maximizing fuel economy.
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Consultation with Professionals

A professional tire specialist or mechanic should be consulted before having your tires replaced. These professionals have the skills and understanding to offer precise guidance tailored to your unique vehicle model, driving style, and needs.

A specialist can advise you on any changes needed to provide the best performance and safety and whether switching from 235 to 245 tires is compliant with your vehicle’s requirements.

Making an Informed Decision

In the end, the decision to replace 235 tires with 245 tires depends on your specific needs and preferences. If improved traction, handling, and aesthetics are your priorities, the switch might be worth considering. However, keep in mind the potential drawbacks and compatibility issues that could arise.


Can you replace any wider tires with the ones that came with your car?

Most of the rim sizes can fit with the tire, which is 10-20 mm wider. In that case, the 245-size tire will easily fit your wheel size without any problem.

When do you need to change your tire size?

Suppose you want more giant rims for your car, then you can change the size of your tire. It will make up for the need for your larger rims. Besides, you can change the tire of your car when the factory-recommended size is rare.

Therefore, if you want an affordable option, it would be great to adjust the size of your tires. Make sure to always check in the tire shop before replacing the tire for your car from the tire rack.

Do you need to change the Rim if you change the tire from 235 to 245?

If you plan to change your stock tire from 235 to 245, the wider tire will give you better traction and more acceleration. The only noticeable difference you will notice when doing a U-turn. The tread width of the tire will easily fit with the new wheel.

As per your question, you don’t need to change the Rim while changing the tire from 235 to 245. The right size tire will never let you feel insecure with the steering and handling. So, there would be no issue using the same rims.

Can a 235 Tire be Replaced with a 245 tire?

As per our experts, you might be able to replace 235 tires with 245. As you know, the 235 tire is about 9.3 inches wide and 27 inches tall. On the other hand, the 245 tire is 9.6 inches wide and 27.65 inches tall. You can see that the 245 is slightly larger than the 235 tires that can easily replace without any modifications.

If you still have any doubts, you can check any mechanic or tire shop. If there are any issues, the tire manufacturers can also answer all your questions and help you out. However, as the 235 and 245 tire sizes haven’t any significant difference, we don’t think there would be any issues you can face.

Is there any big difference between 245 and 235 tires?

No, there is no big difference between 245 and 235 tires. The difference between 235 and 245 is only 3/8 inches. That’s really not much different. You can’t even notice any difference between them at all.

How much bigger is a 245 than a 235 tire?

The 245 tire is not that much bigger than the 235 tire. You can see the 245 tire is slightly bigger than the 235. The tire is more comprehensive than a 235 tire. As you know, the 245/45-17 tires are 24.7″ tall, and they are only 1″ bigger than the 235/45-17 tires.

Are 225 and 245 interchangeable?

As the diameter of the 225 tires and 245 tires are precisely the same and the 245 tire is only 0.8″ wider than the 225, so the 225 and 245 tires are interchangeable.

Can I replace 235 tires with 255?

The 255 tire is ¾” wider than the 235 tires. We can’t see any big difference between them. In that case, you can replace 235 tires with 255. However, the rubber compound may have a big difference between them. If you can adjust them with the rim width, then you can replace the 235 with 255 easily.

Is it okay to have two different size tires?

No, it’s not okay to have two different size tires at all. Having two different tires on the same axle is not a good thing. Thus, if your tires are different sizes and they wear unevenly, you should buy two tires of the same size.

Can 225 tires replace with 245?

Yes, 225 tires can replace with 245. As the diameter of both tires is the same, you can easily replace the 225 tires with 245.

Can I put 245 tires with 235 rims?

The tire size 235 and 245 is very close. Moreover, you can see no big difference between both rims. So, you can easily put 245 tires with 235 rims.

Final Verdict

Choosing the right tire size is an important aspect of vehicle maintenance and performance optimization.

While replacing 235 tires with 245 tires can offer advantages like improved traction and handling, it’s essential to weigh these benefits against potential drawbacks like reduced fuel efficiency and speedometer inaccuracies.

Always consult your vehicle manufacturer’s recommendations and seek advice from tire professionals to make an informed decision about tire size changes.

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