Do You Have To Use The Exact Tire Size?

by | Last updated on January 24, 2024

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Do you have to use the exact tire size? How to make sure that rims will work with tires? Width and diameter are the two factors that determine tire and rim compatibility.

For diameter you’ll need to be sure that your tires and wheels are an exact match

, e.g. a 215/65R17 tire will only fit on a 17′′ diameter wheel.

What tire size can I substitute?

As a general rule, you want replacement tires that are

within 3 percent of the diameter (height) measurement of your existing tires’ diameter

— assuming your current tires are what your owner’s manual recommends.

Can I use a smaller size tire?

Smaller tires can cause inaccurate information from your speedometer and odometer, create transmission shifting issues, cause anti-lock brakes to malfunction, and may even trip your check engine light.

What happens if you use wrong tire size?

Can I put a different size tire on my car?

Wheels and tires are not interchangeable words. Tires are a part of the wheel setup. For instance, your vehicle has a set size of rims, but

you can buy different sizes of tires to fit those rims, as long as the middle of the tires is the correct size

.

Can I put 265 tires on 245 rims?

The 245 35 R17 tire has a width of 245 mm, a height that is 35% of 245 mm (85.75 mm), and it is compatible with a 17-inch diameter rim.

The 265 40 R17 tire has a width of 265 mm, a height that is 40% of 265 mm (106 mm), and it is compatible with a 17-inch diameter rim

.

Can I put 235 tires on 225 rims?

since you don’t have quattro

it should be ok as long as the two tires are the same in the front and rear

. However, you mention 235 width and I assume they are still the 45 series then you are running on a larger diameter since 45% of 235 is larger than 45% or 225.

Can I use 225 tires instead of 255?

then

yes 225 will fit

, lokks a bit streached but fits ok. Tyre manufacturers will give a rim width guide for tyre fitment anyway. The 225 or 255 is the width in mm.

Can I replace 235 tires with 245?

The quick answer is

yes you can replace 245/50-18 tyres with 235/50-18

but they will have 10mm (0.4 in) smaller overall diameter. Will only slightly effect speedo and odometer – ie speedo will read about 1.5% high.

Can I use 225 tires instead of 205?

Expert Reply:

You can certainly change your trailer tires to a narrower 205mm width as long as your wheels are 6- or 6-1/2-inches in width

. These are the only size wheels that can take both 225mm and 205mm tire sizes.

Can I drive with one tire bigger than the other?

A:

The mismatched tire is a dangerous situation

. It should be replaced with the proper size immediately. And they have placed the tire on the worst possible end of the car, the rear. Mis-sized rear tires can lead to a loss of control under hard braking (the car can spin).

Can you drive with one tire smaller than the others?


You can drive with a smaller spare tire but not more than 50 miles

. Smaller spare tires are not meant to travel for a distance more than 50 miles and speed exceeding 50 mph as they have a much smaller size and little to no tread compared to normal tires for better traction handling and ABS control.

Are 225 and 245 tires interchangeable?

If you want to interchange 225 and 245 tires,

you need to be sure that the rim on which the tire is being mounted on is able to fit a wider tire

.

Can wrong size tires damage transmission?


Increasing Tire or Rim Size Can Cause Premature Wear


If you are running an automotive transmission

this can cause some serious strain depending on the current gear ratio if you choose not to re-gear your system.

Can I use 205 tires instead of 215?


Physically they should fit on the rim and tire without issue

. The difference is going to be the rolling distance is a bit shorter for the new (to you) tires. 215 to 205 is 1cm difference in width.

Can I use 265 tires instead of 235?

A 265-75-16 tire will be just shorter then a 235-85-16 tire. No they are different heights about 2 inches 2wd yes 4wd and using 4wd no.

You will be fine if you replace the 235-85-16 with a 265-75-16

.

What tire is wider 70 or 75?

70 (or 75) is the ratio of the width to the sidewall height. So

a 75 will be a taller tire

, and closer to the height of the 6.70×15.

Can you put wider tire on same rim?

As a general rule of thumb,

it’s safe to fit a tire up to 20 millimeters wider than stock on the original rim

. The actual width of the tire will vary depending on the width of the rim: The tire will expand 5 millimeters for every half inch (12.5 millimeters) increase in rim width.

Can I use 235 tires instead of 215?

Can I use 235 60r18 instead of 225 60r18?

Registered.

You should be fine with any of those

, but 235/60/R18 is slightly larger than 225/60/18 … +1.7%, so your speedometer and odometer will under-report by this much.

How much wider is a 255 tire than a 235?

I can’t imagine it will make that big of a difference, but it’s got to feel a little grippier and hook a little bit better right? Mark, the 255s are

20 mm

wider.

Can I use tires with different aspect ratio?

That said,

the only dimensions you can change are the width and aspect ratio

— never the wheel size, unless you buy replacement wheels — and you should always strive to keep the total height of the tire the same as the OEM. So, if you widen the tire, you may need to decrease the aspect ratio, and vice versa.

Can I put 15 inch wheels on a 14 inch car?

Can I replace 14 inch wheels with 16 inch?


No. Bigger circumference tyres will effectively increase you gearing and slow acceleration

. It may marginally increase top speed if the engine has sufficient power. Most modern cars have a high final gear so the extra gearing through bigger tyres might cause the engine to struggle.

Can I use 245 65R17 instead of 235 65R17?

Expert Reply:

Yes, a size 235/65R17 tire will fit the same wheel as a 245/65R17 size tire

.

What does the J mean on wheels?

The letter “J” means

a tyre bead profile

. This is the marking used to define the wheel collar profile you should never ignore.

Is 245 A wide tire?


A 245 is 245 millimeters, or 24.5 centimeters, wide

. The tread width is actually somewhat smaller than the tire’s actual width.

Can I use r16 instead of r17?

If all of these questions have the correct answer,

YES, you can safely use your newly acquired wheels

, even though they are 1′′ smaller in diameter.

Can I use 205 60r16 instead of 205 55r16?

How much taller is a 225 tire to a 205 tire?

Is it OK to have 2 different size tires?

Having two different-sized tires on the same axle is

generally not a good thing

. If the diameter of the two tires is close, then the rolling radius is about the same, so in the short term, you probably won’t have any damage, but long term, you run the risk of messing up your car’s differential.

Is it OK to have one tire different?

Is it OK to have mismatched tires?


A car with mismatched front and back tires should still be usable, especially if it is a two wheel drive vehicle

. Tires wear out at different rates, and if one is more worn than the other, simply rotating the tires may be a possibility to prevent further wear.

What size wheel does a 245 tire fit?

That said, it’s important to stay within the range of approved rim width/tire size combinations, which are determined by the Tire and Rim Association, as well as the European Tire and Rim Technical Organization. For example, a 245/45R20 has a rim width range of

7.5′′ to 9.5′′

.

What is the difference between 225 and 215 tires?

215 and 225 are the tire widths measured in millimeters. That said,

225 is wider than 215, however, in terms of aspect ratio, the latter has a higher profile

. These two tire sizes also serve a specific purpose depending on general usage.

Will a 245 tire fit a 7.5 rim?


245/40/18 will safely fit on 7.5′′ wide wheels

.

Leah Jackson
Author
Leah Jackson
Leah is a relationship coach with over 10 years of experience working with couples and individuals to improve their relationships. She holds a degree in psychology and has trained with leading relationship experts such as John Gottman and Esther Perel. Leah is passionate about helping people build strong, healthy relationships and providing practical advice to overcome common relationship challenges.