Whether you want a better look for your car or a better grip while speeding, a wide tire will do the trick. However, your car already has a rim that you must consider before purchasing a tire. Many car owners face this dilemma.
So, what’s the widest tire on 8.5 inch rim you can go for?
A 255 mm tire is the widest you can attach to your 8.5 inches rim. It will bulge a little due to the width but is insignificant enough to not cause any damage. However, tires wider than that do cause many problems with an 8.5 inches rim including excessive bulging, suspension rubbing, and even tire bursts.
There are multiple other factors to think about. So, before making any decisions, continue reading.
Content Summary
- You can go for a maximum of 1.5 inches wider tire than the rim.
- A tire that’s too wide can cause your car certain problems.
- There are some other factors including tire size, tire profile, and speed you should consider before choosing a tire.
Also Read: Widest Tire On 9.5 Inch Rim
What Is The Widest Tire On 8.5 Inch Rim?
The widest tire on an 8.5 inches rim can be at most 1.5 inches wider than the rim. However, in standard practice, the tire should be 0.75 inches to 1.15 inches wider than the wheel rim. Here are the ideal tire sizes for an 8.5 inches rim.
| Rim Size | Minimum tire size | Standard tire size | Maximum tire size |
| 8.5 Inches | 225 mm | 235 or 245 mm | 255 mm |
Let’s discuss different size tires for 8.5 inches rim in detail.
Can You Fit A 225 Tire On A 8.5 Inch Rim?
A 225 mm tire is the least width you can go for with an 8.5-inch rim. A 225 mm tire is 0.35 inches wider than the 8.5 inches rim.
If you choose a lower tire than that, the tire will flatten to fit the rim. And the contact patch with the road will be too less resulting in low brake efficiency.
Can You Fit A 245 Tire On A 8.5 Inch Rim?
Yes, you can fit a 245 mm tire perfectly on an 8.5-inch rim. This is the ideal size for this rim recommended by the manufacturer. It is 1.15 inches wider than the 8.5 inches rim, which is the standard size.
If you have an 8.5-inch rim, your car tire should come with this size of tire. Your tire will get an adequate contact patch with the road. The same stands true for a 235 mm tire.
Can You Fit A 255 Tire On A 8.5 Inch Rim?
Yes, you can fit a 255 mm tire on an 8.5-inch rim. The 255 mm tires are about 10.01 inches wide. That means, they are 1.5 inches wider than an 8.5 inches rim. It is the maximum width you should go for if your car rim is 8.5 inches.
A 255 mm tire will give you the desired drift you want resulting in better control of the car.
However, a problem with wider tires than rims are sidewall curving. As you have to adjust the wide tire in a narrow space, the tire gets a little curved.
This tire size is allowed because the curving that occurs for 1.5 inches wider tires isn’t significant.
Widest Tire On 10 inch Rim
Can You Put A 265 Tire On A 8.5 Inch Rim?
No, the 265 mm tire is almost 2 inches wider than the 8.5 rim which is way above the maximum width. The first problem you will face with a tire this wide is, the tire will keep rubbing against the suspension.
When the tire exceeds the standard of compatible width with the rim, it gets closer to the suspension. While the car is running, the rubbing causes damage to both the tire and the suspension.
A common misconception is that you will get more surface area with the road and therefore, better grip with a wider tire. It’s true within the standard range.
However, when the tire is too wide, it will bulge when fitting within the narrow rim. As a result, there will be a significant upward curve which will provide less surface area with the road.
Moreover, this bulging can even cause the tire to deform, slip out from the rim, and even burst while driving too fast.
Here is a summary of the overall comparison of different sizes of tires o fit the 8.5-inch rim.
| Tire Size | Rubbing Suspension | Contact Area | Sidewall Curve | Slippage from the Rim |
| 225 | None | Low | No | No |
| 235 | None | Adequate | No | No |
| 245 | None | Adequate | No | No |
| 255 | None | High | Yes | No |
| 265 | Yes | Not Adequate | Yes | Yes |
So, what is the best tire size for an 8.5 rim? The best size of the tire for an 8.5-inch rim will be 245 mm and 255 mm.
And what should be the widest tire on 8.5-inch rim? The widest tire that suits an 8.5 inches rim is a 255 mm tire.
Other Things To Consider While Choosing A Tire Size
Apart from matching the tire size with rim size, there are other certain factors you need to consider while choosing a tire for your car. Those are described below.
Tire Profile
Tire profile is the thickness of the tire’s sidewalls. A 50% tire profile is best for having enough protection from slipping on a wet road. However, a high-profile tire can cause the same problem as a wide tire with an 8.5 inches rim if it is too wide.
Tire Size
What size tire you should choose depends on your car. Don’t go for bigger-size tires just for the look of it. It can cause accidents.
Speed Rating
Speed rating also differs according to the car. Since you are aiming for a better grip with a wider tire, you should consider a tire with a better speed rating too. These tires also provide better drift.
Tread Pattern
There are different types of tires with different tread patterns including, asymmetrical, directional, and symmetrical. For a better grip, you should choose an asymmetrical tread pattern for your car tire.
Aside from the tire’s width, assess these things carefully when choosing a tire.
Can you put wider tires on the same rim?
Yes, you can put wider tires on the same rim, but there are some factors to consider before doing so.
The first thing to check is the tire clearance of your vehicle. If the wider tire rubs against the suspension or body components, it won’t be safe to use.
Another factor to consider is the rim width. The rim width should be able to support the wider tire without causing any issues such as bulging or deformation. A rim that is too narrow for a tire will create a smaller contact patch and can cause handling problems, while a rim that is too wide for a tire can cause the tire to overheat and fail.
Additionally, the aspect ratio of the tire, which is the relationship between the tire’s section height and section width, also needs to be taken into account. If the aspect ratio of the new tire is significantly different from the original tire, it could affect the overall performance and handling of the vehicle.
So, before putting wider tires on the same rim, it is important to consult the vehicle manufacturer’s recommendations and to make sure that the new tires are compatible with the rims and the vehicle.
8.5 J MODIFIED STEEL RIMS FRM STOCK RIMS(VIDEO)
FAQs
Can You Fit A 285 Tire On A 8.5 Inch Rim?
No, you can’t fit a 285 mm tire on an 8.5-inch rim. This excessively wide tire will have too much bulging resulting in a dangerous curve in the sidewall. The tire may slip off the rim and even burst.
Which Tire Is Wider 245 Or 265?
Compared to the 245 mm tire, the 265 mm tire is 0.8 inches wider. In millimeters, this 3-digit number indicates how wide a tire is.
Do Wider Tires Ride Better?
Yes, wide tires ride better as they provide a better drip for the surface. However, if the width of the tire is not compatible with the other things including the rim and car type, the car won’t ride better.
Conclusion
Here goes the discussion on the widest tire on 8.5-inch rim. I hope this article will assist you to choose the suitable tire for your car.
Just be careful you don’t go overboard with the tire just because it looks great. Prioritize safety.
That’s all. I will come soon with another of your queries. Good day!
FAQs
Can you fit a 285 tire on a 8.5 inch rim? ›
285s are too wide to properly fit on a 8.5 inch rim. For example: I run 275's on a 10" rim. The widest tire that is recommended on a 8.5" wheel is a 255. For a 285, you need at least a 9.5" wide wheel.
Can you put a 275 tire on a 8.5 inch rim? ›A 275 is way too wide for an 8.5" wheel. Like Natedog said, a 255 is the widest thats recommended for an 8.5.
Can you put 245 tires on 8.5 wheels? ›245/40 on an 8.5 fits perfectly.
How much wider tire can I use? ›As a general rule of thumb, it's safe to fit a tire up to 20 millimeters wider than stock on the original rim.
How wide is a 305 tire? ›The width of a 305 tire size in inches is 305mm, or roughly 12 inches.
Can you put 225 on a 8.5 rim? ›225 on an 8.5 inch wide wheel is unsafe and not recommended. 235 is the minimum. Your tire manufacturer's website, as well as tirerack.com, will list approved rims widths for each tire. 225 on an 8.5 inch wide wheel is unsafe and not recommended.
Will a 235 40 fit a 8.5 rim? ›Thanks. You can, the 95 ltws were 7.5 front and 8.5 rear and they ran 235/40/17s all around. It's just streched a bit thin is all.
How many inches is a 285 width tire? ›285 indicate 285/75/16, which is the metric size for 33 inches.
Are 275 tires too wide for snow? ›If things are sized correctly, moving to a smaller and narrower tire can actually improve winter traction and driving safety, as particularly wide tires — such as 275 millimetres and up — can easily ride up on snow instead of cutting through it.
Are 275 tires wider than 245? ›Are 275 wider than 245? Definitely yes. 275 size means the tires are 275 millimeters wide while 245 tires are 245 millimeters wide. That is a 30mm difference from sidewall to sidewall between these two sizes.
Will a 225 40 18 fit a 8.5 rim? ›
A 225/40/18 will work perfectly fine on an 8.5" wide wheel.
Which tire is wider 235 or 245? ›Overall in a comparison of 235 vs 245 tires, 245 tires come with a wider footprint which enables better wet/snow/ice braking performances compared to a 235 tire. However a 235 width tire having a narrow footprint has a better noise performance compared to a 245 width tire.
How wide of a rim do I need for a 245 tire? ›For example, a 245/45R20 has a rim width range of 7.5" to 9.5". This means that this tire size would fit the following rim sizes: 20X7. 5.
Are 255 tires wider than 245? ›While the exact dimensions of a 245 or a 255 tire can vary somewhat between tire manufacturers, for any specific manufacturer a 255 tire will have a wider section width (bulge or tread width) than a 245 tire, the difference being 10 mm.
What is the widest tire for a 8.5 inch rim? ›255 is the max width recommended (by any tire manufacturer I've seen) for an 8.5" rim.
What are the downsides of wider tires? ›Reduces Acceleration And Steering
As mentioned above, wider tires increase the vehicle's weight. Extra weight reduces acceleration because of their large contact area; your vehicle cannot increase average speed right away. Not only that, but it also causes many difficulties in controlling the car.
The added weight and other aspects of the vehicle affected by the wider tyre would result in lower fuel efficiency. The mileage of the car may drop from 8-10 per cent depending on the width and sidewall size of the new tyre.
Is a 315 tire the same as a 35? ›YES, 315 wide tires are the same as 35” tires although 315 is the tread width in millimeters and 35″ is the tire diameter. 315/70/17 is usually the accepted metric equivalent size for standard/imperial 35-inch tires.
How wide are 35 inch tires? ›The Diameter of this tire size is 35 inches. The first number in a high flotation tire size is the overall diameter of the tire. The width of this tire size is 12.5 inches.
How wide is a 305 40 18 tire? ›Tire Size: 305/40-18 Wheel Diameter: 18 in. Sidewall Style: Blackwall Tire Construction: Radial Tire Diameter Range: 27-27.99 in. Tire Diameter: 27.60 in. Section Width: 12.30 in.
What is the max rim width for a 225 tire? ›
A 225 millimeter section width tire, for example, can be fitted to an 8" or 8.5" wide wheel.
Will a 215 fit on a 8.5 rim? ›You can absolutely run 215's on an 8.5" wheel.
Will 225 40 fit on 8 inch rim? ›a 225/40 is 225mm wide and 90mm high. An 8" wheel is 203mm wide so a 225 tire will fit just fine, however a 9,5" wheel is 241mm... much wider that the tire and not a good idea, would not put anything smaller than a 245 tire on a 9,5" wheel.
What tire is wider than a 235? ›If you have a 245/75R/18 tire, it means that the tire measures 245 millimeters across the tire from sidewall to sidewall. It is 10 millimeters wider than the 235 tire size.
What is the width of a 235 45 wheel? ›| Unit: Imperial Imperial Metric | |
|---|---|
| Section Width | 9.25 in |
| Rim Diameter | 17.00 in |
| Rim Width Range | 7.50 in - 9.00 in |
| Overall Diameter | 25.33 in |
| Budnik Tire Chart | ||
|---|---|---|
| 235/45-17 | 25.3 | NT555, INVO |
| 235/50-17 | 26.3 | |
| 245/35-17 | 23.8 | |
| 245/40-17 | 24.7 | INVO |
40mm. The first number in a tire size is the tread width in millimeters. So a 285 tire has a tread face width of 285mm, a 245 tire, 245mm. Therefore the sidewall of the tire is 114mm.
How many inches is a 265 wide tire? ›METRIC TIRE TO DIAMETER (INCHES) CALCULATOR
For example a LT265/75R16 would be around 31.6 inches tall and 10 inches wide.
You may also notice that some enthusiasts instead choose a much wider tire for the rear axles as compared to what they put up front. The theory behind this is that it gives you as much rubber as possible to transmit power to the pavement, thus ensuring excellent traction for higher horsepower, rear-wheel drive cars.
Are wider tires always better? ›From a safety point of view, both types have their good sides: On a dry road, wider tires will offer more grip than narrow ones, but the risk of aquaplaning will be higher with wide tires. – In the winter, narrow tires are better under extreme conditions as they provide higher surface pressure against the road.
What happens if you put too wide a tire on a wheel? ›
The ratio between the section width and the rim width is pretty important. If the rim width is too narrow, you pinch the tire in and cause it to balloon more in cross-section. If the rim width is too wide, you run the risk of the tire ripping away at high speed.
Are 265 or 275 tires wider? ›Going from 265 to 275 is fine on your car and you should not notice any difference in driving. It's less than a 4% difference in width: 10/265 = 0.0377).
What number makes a tire wider? ›Is the width of the tire measured in millimeters from sidewall to sidewall. The first three-digit number in the tire size refers to the tire width. For instance, in a size P215/65 R15 tire, the width is 215 millimeters.
How wide are 245 40 tires? ›| Unit: Imperial Imperial Metric | |
|---|---|
| Rim Diameter | 18.00 in |
| Rim Width Range | 8.00 in - 9.50 in |
| Overall Diameter | 25.72 in |
| Sidewall Height | 3.86 in |
...
What Is The Rim Width Range For A Tire?
| Difference from Measuring Rim | Rim Width | Approximate Tire Section Width |
|---|---|---|
| 1.5" wider | 7.5" | 8.83" |
The size of the wheel, however, is denoted as 8.5 in × 20.0 in (220 mm × 510 mm). This means that the width of the wheel is 8.5 in (220 mm) and the diameter is 20 in (510 mm).
What is the difference between a 235 65 17 tire and a 245 65 17 tire? ›The tires you have now, 235/65-17, are about 9.25 inches wide and 29 inches tall. The 245s on the other hand are 9.65 inches wide and 29-1/2 inches tall. On vehicles, especially newer vehicles, there is very little space to go to a larger tire without making other modifications.
What damage can bigger tires cause? ›Additionally, up-sizing impacts the speedometer, fuel economy, and can place stress on the powertrain and brakes. If installed incorrectly, up-sized tires may also rub the wheel well, brake calipers, or vehicle frame, and could potentially wear down any parts they grind against.
Will a 245 tire fit 8 inch wide wheel? ›245s on 8" is a tad bit stuffed, but definitely achievable and obviously you'd want to run a 40 series tire. As are CE28's which look similar. That'll work just fine.
What size Tyres fit 8.5 rims? ›| Rim width | Minimum tyre width | Ideal tyre width |
|---|---|---|
| 8,0 Inches | 215 mm | 225 or 235 mm |
| 8,5 Inches | 225 mm | 235 or 245 mm |
| 9,0 Inches | 235 mm | 245 or 255 mm |
| 9,5 Inches | 245 mm | 255 or 265 mm |
Are 275 tires the same as 33? ›
Is 275 the same as 33? Tires that measure 275/60 R20 are equivalent to the 33-inch.
Will 245 40 fit on 8 rim? ›That means it will fit on the 8" rim just fine. It shows the section width on an 8.5" rim at 9.8", so with an 8" rim, it will probably be closer to 9.6" (narrower.)
What tire is wider 255 or 275? ›Whilst the 275 tires are bigger the 255 tires are more suitable for the smaller cars. Since these are smaller tires, they will hold cars that are weighed over 800 kg. The 255 tires will not be as sturdy as the 275, but this also means the 255 tires will go faster.
How many inches is a 255 wide tire? ›255 (Tire Width): The tire width is 255 millimeters from sidewall to sidewall (just over ten inches). 45 (Aspect Ratio): The tire's sidewall is 45% of the tire's width, which means the sidewall is about 114 millimeters or just over 4 inches.
Is 255 better than 245? ›The biggest difference is when you're not running. The Forerunner 245 is rated for about 7 days of battery life in smartwatch mode, while the 255s is rated for 12 days and the 255 is rated for 14.
What is the widest tire to fit on a 8.5 inch rim? ›255 is the max width recommended (by any tire manufacturer I've seen) for an 8.5" rim. May depend on the tire but the tirerack web site gives spec, including rim with range, for each tire. An example is the Pilot Super Sport lists the widest tire for a 8.5 inch wide rim as 255.
Will a 225 tire fit on 8.5 rim? ›225 on an 8.5 inch wide wheel is unsafe and not recommended. 235 is the minimum. Your tire manufacturer's website, as well as tirerack.com, will list approved rims widths for each tire. 225 on an 8.5 inch wide wheel is unsafe and not recommended.
Will 235 tires fit 8.5 rim? ›Thanks. You can, the 95 ltws were 7.5 front and 8.5 rear and they ran 235/40/17s all around. It's just streched a bit thin is all.
Does tire width need to match wheel width? ›For your safety, and for the optimal ride, your rim width and tire size must be compatible. Why? Because the rim width has a direct impact on your tire's contact patch, which changes how the tire interacts with the road and how your vehicle handles.
What happens if you put a wider tire on a rim? ›If the rim width is too wide, you run the risk of the tire ripping away at high speed. For 50-series tires and above, the rim width is 70% of the tire's section width, rounded off to the nearest 0.5. For example, a 255/50R16 tire has a design section width of 10.04" (255mm = 10.04 inches).
Can a tire be too wide for a wheel? ›
Changing the tire section width
And it's not uncommon that original equipment wheels can accommodate a wider tire size than stock. However, fitment of a tire that's too wide can result in contact with various vehicle components, and vehicle damage ranging from minor to significant is possible.
255 (Tire Width): The tire width is 255 millimeters from sidewall to sidewall (just over ten inches). 45 (Aspect Ratio): The tire's sidewall is 45% of the tire's width, which means the sidewall is about 114 millimeters or just over 4 inches.
Is 215 wider than 225 on a tire? ›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.
Is a 245 tire wider than a 235? ›If you have a 245/75R/18 tire, it means that the tire measures 245 millimeters across the tire from sidewall to sidewall. It is 10 millimeters wider than the 235 tire size.
Is 235 the height or width of a tire? ›The “235” grouping indicates the width of the tire from sidewall to sidewall in millimeters. So, in this example, the tire is 235 millimeters — 9.25 inches — wide from sidewall to sidewall.
How much wider should a tire be than the wheel? ›“For ideal handling: when sizing a wheel for a given tire, I usually target the WHEEL to be the same width as the tire's TREAD width, or 0.5” wider.”
Do wider tires look better? ›Narrow tires are cheaper but wider ones look better
The tire width will affect their price and several other characteristics, such as grip, noise level, driving comfort, and appearance. Replacing narrow tires with wider ones will usually increase rolling resistance and, therefore, slightly increase fuel consumption.