Watch this short video to find which tires fit your car or truck
You might have a lot of questions when it comes to replacing your tires. With measurements, performance types, and load capacities, there’s a lot you might feel you need to think about.
The truth is there aren’t a lot of factors to worry about, but there are just a few important things you need to consider.
Identifying Compatible Tire SizesYou can check three different places to find the tire size on your vehicle. The first is in the driver’s door jam. Open up the driver’s door and look within the door jam or on the door itself and locate the sticker that has your tire information on it. Here you will find the wheel (rim) and tire size your vehicle came equipped with from the factory. It is important to note that if you purchase your vehicle used or had the wheels changed, the tire size could be different from when the vehicle left the factory.
For this reason, it is always a good idea to check the tire itself. You will see a series of letters and numbers that will look like this for example: 205/55R16. This will confirm the size of the tires on your vehicle. Make sure all 4 tires read the same size, as some vehicles come with staggered fitments which means the front and rear wheels and tires can be different sizes.
You can also check your owner’s manual but the first two options will be the best.
Tire WidthWhen you look at the tire size, you will see a label that reads something like P215/60R16 94T. With this example, the first number, 215, is the width of the tire in millimeters. The number 60 indicates the sidewall height and width ratio of 60%.
Finally, 94 shows the tire’s load capacity or how heavy a car the tires can support.
The primary factor to think about is your car’s tire width vs. rim size. If you plan to keep your rims, their size will determine which tires will work well and which ones won’t.
If you are looking to put a narrower or wider tire on your vehicle, than it currently has, there are a lot of factors to consider. This will change the way the vehicle handles, suspension geometry, anf fuel mileage. You typically have some flexibility if you are looking to get a wider tread pattern, a higher sidewall, but you cannot change to a size that varies by a great deal. It’s best to ask before you purchase tires so the right tires are installed the first time. JACK Mobile Tire can recommend the best tire size for your vehicle.
RimsThe size of the rims you have will determine the range for the size of tires you can have on your car. This means that your wheels are compatible with a range of tire sizes that will allow your car to function optimally.
You can view the Rim width size chart for comparison.
As an example, you can look at the 5 in. rims in the chart. You can see that the minimum tire width these rims are compatible with is 155 mm tires. The optimal performance width is between 165 and 175 mm, and the maximum is 185 mm. You have some options when you compare tire width vs. rim size, but these online guides are not what you should also go off of – you should always consult an expert first. Call us at JACK Mobile Tire to verify the proper fitment.
Reasons to Change TiresThere are a few reasons why people change tires. Sometimes it’s for maintenance reasons, but other times it is for performance and aesthetics. In general, tires need replacements every 3 to 4 years, depending on how much you drive. It’s best to go with tires and brands that you feel will last at least that long.
PerformanceThere are several types of tires that drivers can pick from. As you change out your tires, you have the option to choose from these tire categories for increased performance on the roads you want to prepare for.
There are all-season, summer, winter, and all-weather tires.
All-season tires are convenient options because they have a good overall performance on most kinds of roads. As an all-around option, they are good for everyday use but are not recommended for driving in wintry conditions, as the compounds get hard in extreme cold.
Summer tires are great for dry pavements and also for wet roads. Most performance vehicle owners will opt for a summer tire for the best performance in warmer climates.
Winter tires offer traction in the snow and on icy roads. Traction and stopping distance are greatly improved with winter tires. The compounds that make up winter tires are different from all-season and summer tires. The tire stays soft in extremely cold conditions. If you live in an area that experiences a good amount of winter weather, do yourself a favor and get a set of winter tires.
Owners of summer and winter tires usually exchange tires as the seasons change to match the road conditions.
All-weather are snowflake rated, like winter tires, which means they can be used in wintery conditions. However, all-weather tires will wear out faster than all seasons tires do throughout the course of a year.
AestheticsFor aesthetics, you can purchase larger wheels (rims) and tires if you are looking to change the appearance of your vehicle. Wheels and tires usually have the largest impact, next to the paint, on the overall appearance of a vehicle. If you would like a wider tire or get a larger or thinner sidewall, it’s always best to consult an expert at JACK Mobile Tire Installation first.
Improperly fitted tires can cause your car’s speedometer to be off, driving experience to decline, and overall performance to suffer—causing more automotive issues later on.
Ask For HelpIf you’re still unsure what size tires or what kind of tires you need for your car, you can always contact one of the certified technicians at Jack Mobile.
At JACK, technicians want to help you get the tires you need and get back onto the road. Since there are many kinds of tires out there, technicians can recommend some great options for your car.
Rim width and tire width are two closely related sizes. Flexible tire sidewalls alow a single tire size to be mounted on a rim of various widths.
Actually, there is an approved rim width range for every tire size, but on the other side, there is a tire width range for every rim size, specifically, rim width.
Note: There are three charts on this page. First chart shows tire widths adequate for a certain rim width and tire aspect ratios. The other two charts are doing the same but in a separate table for each rim width; inside the table data is ordered by tire width or tire aspect ratio.
When replacing a rim or a tire with a wider one you could ask a question in two different ways:
g., 195/65 R15)The answer would be: "Rim widths corresponding to the tire size 195/65 R15 are: 5.5, 6.0, 6.5 and 7.0 inches". The information related to other tire sizes can be found in Wheel/Rim Size Calculator or Rim Width Range and Measuring rim for Tire Size chart.
If you want to mount a wider or a narrower tire on the existing rim you could ask the question:
For example, appropriate tire widths for the 6" rim are from 175mm to 225mm. That's answer you can find in the charts below this text.
When replacing OE(original equipment) tire with a wider one, aftermarket tire, the width of rim should be taken into consideration because each rim width corresponds to only a few tire widths.
The charts presented below could help you to make the rational decision about the tire width you need for the given wheel/rim width.
But, please consider that the resulting tire list lacks certain tire sizes, so it should not be treated as complete.
When we say tire size in this context(relation between tire width and rim width), we mean only on tire width(i.e., section width) and tire aspect ratio/series, there is no rim diameter. Tires presented in the list should not be all considered suitable for your car, because only a few of them or maybe, only one would satisfy a requirement that their overall diameter should be almost the same as your OE (original equipment) tire diameter. The data presented in the charts is only for the passenger car metric tires.
NOTICE: These charts do not represent complete or ultimate solution for this particular purpose, they are only a reference.
So, when you find tire sizes, i.e., tire width and series combinations that fit your wheels/rims, use our Tire Size Calculator – Tire Dimensions to compare them with your OE Tire size to ensure that the selected tires circumferences or diameters do not deviate too much from the OE tire circumference or diameter. This is extremely important for many reasons.
The charts, as an addition to our tire4rim calculator, should be used along with our rim4tire calculator, which complement each other. If you choose a tire size in these charts or in the Tire size for rim size calculator, do one more check in the Wheel/Rim size calculator(or in the chart: Rim width range and Measuring rim width for Tire Size) for the selected tire size, to double check if the selected tire size has your rim in the acceptable rim width range.
Find more relevant information below these charts.
Can I mount a smaller tire width than the one presented in the chart as the smallest, for the specific rim width?
Notes: A Tire with higher profile(series) for the same tire width or the same profile for a wider tire width, has a higher tire sidewall, that means more comfortable ride. Wider tires create more traction on the road, resulting in reducing fuel economy.
Disclaimer:
Please note that these charts should be used only as a reference and they should be verified with tire/wheel manufacturers.
They are for informative purposes only. The tyresizecalculator.com is not responsible for any errors that may arise with their usage.
In the charts, every tire width and aspect ratio combination, listed below the certain rim width, could be mounted on the rim width, but the question is: which tire width is the best fit to the rim width?
The tire Measuring Rim Width, which stems from the tire size could help. You already have the tire width, the aspect ratio, the rim diameter you want to use, that is, you have the full tire size. if your rim width is closer to the measuring rim of selected tire, it's more likely that the chosen tire would fit your rim.
Every tire size has its own Measuring Rim (check the Measuring Rim Width for a tire size by clicking the previous link). In other words, the nominal tire size(imprinted on a tire sidewall) becomes the real tire size when fitted on the appropriate Measuring Rim.
For the specific rim size and adequate tire dimensions try out our Tire size for rim size/width calculator which tells you what tire sizes to pick for entered rim size(i.e., rim width).
The charts in this article show what tire width and series combinations fit to the specific wheel/rim width i.e., they show the tire width range for the given rim width. E.g., for the 7" (inch) rim width, following tire widths can be fitted: from 195mm to 255mm.
In the charts, beside each tire width, there is one more tire dimension: a tire series. The tire series is the ratio between the tire section height(i.e., tire sidewall height) and the tire section width (i.e., tire width). Series = tire sidewall height / tire width.
If two tires have the same tire width, but different series: the first has 50, the second has 30, that means that the second tire has the smaller tire sidewall height(lower profile) in relation to the first, so rims will be closer to the road.
The tire width, the rim width and the tire series are closely related sizes when we talk about the tire to rim fitment. The reason for this is that for almost every tire series there is a different rim width/tire width ratio(specified by the tire associations). The ratio is used for determining the Measuring Rim for the tire. In other words, a lower aspect ratio means that you could use a wider rim for the same nominal tire width.
Actual tire dimensions depend on a rim on which a tire is mounted. The nominal tire size is imprinted on the tire sidewall, but the tire gets its real dimensions(i.e., real tire size) only when mounted on the rim. That's the reason why a Measuring Rim exists for every tire size.
Next important info is that the tire width changes for about 5mm (2/10") for every 0.5" (inches) change in the rim width, in the Approved Rim Width Range for the tire.
Suppose you have the tire size 195/65 R15 on the 6" (inch) rim width (6"x15").
If you changed the rim to 7"x15", according to the previous rule, when you mount the tire 195/65 R15 on that rim, the real tire width would be 195mm + (2 x 5mm) = 205 mm.
The type of rim, that tire is designed for, is also important.
All these things could affect the overall tire diameter(or circumference), which is important to stay in the permissible limit, during the process of tire replacement.
These charts are only for the passenger car metric tires.
The charts are a compilation of data from year books of renowned tire manufacturers, and it might not be in accordance with the newest data, so please, always check the data from these charts with tire manufacturers or tire specialists!
Looking at one chart row, for one rim width, treated as a measuring rim width(MRW), there are various tire widths in columns, designated as aspect ratio(i.e., tire series/profile). In the row, as series rises, the tire width rises also.
So, we may say there are the minimum and the maximum tire width for one rim width, but only in the context of the tire series.
If we took only one cell in the row, which contains one tire width, for e.g., the one with the minimum tire width(TW) for observed rim width(RW), could we say that this is the minimum tire width that can be mounted on the rim width? No. The cell contains the real tire width for the rim width, the one which is equal to the nominal tire width/size(imprinted on the tire sidewall), the one we get when the tire with that nominal tire width is mounted on the rim with the rim width.
This doesn't mean we can't mount a smaller tire width than the one showed in the chart as the smallest for the same rim width. How so? For e.g., the row with 9" rim width lists as the smallest tire width, 255mm for AR: 25,30,35 and 40. Is it possible to mount smaller tire width than 255 on that rim? Yes.
In our Wheel/Rim Size Calculator-Shows acceptable rim width range for the tyre size, enter tire size 245/40 R 18, you'll get approved rim width range(ARWR): 8" – 9.
5" and measuring rim width of 8.5", which means you can mount that tire size(with 245mm tire width) on 9" wide rim, because it's in the ARWR for that tire size. But, measuring rim width(MRW) for that tire size is 8.5", and we were talking about mounting the tire on the rim width of 9".
A tire gets its final size after being mounted on a rim. Every rim width increase of 0.5" as a result has tire width increase of 5mm or 2/10", when the tire is mounted. Every tire size has a measuring rim width and an approved rim width range.
Hence, when we mount the nominal tire size(imprinted on the tire sidewall) 245/40 R 18, which has MRW equal to 8.5", on the rim width of 9", the real tire size, specifically, real tire width would be 250mm, not 245mm, because the rim on which the tire is mounted is 0.5" greater than the tire MRW.
Related articles:
The issue of selecting tires for disks has always been relevant for motorists, since every self-respecting driver needs to know certain parameters.
If the characteristics are not known and these parameters are not followed, the car will experience a significant deterioration in performance, which seriously threatens safety.
In order to match rubber to the wheels as accurately as possible, you should first study the marking of the wheels:
Wheel marking with dimensions R13 4x98 ET35 J5 D58.6
It is the latter that plays a major role in matching tires and wheels. In order to choose the right wheels for tires on passenger cars, you can use the table compiled by the specialists of Avtotire Kom. Or you can use the selection of discs for the car by clicking on the link .
Tire/Rim Matching Chart
| Disc diameter | Tire size | Wheel rim width (inches) | ||
| Minimum | Recommended | Maximum | ||
| 13" | 135/80R13 | 3. 5 | 3.5 | 4.5 |
| 145/80R13 | 3.5 | 4 | 5 | |
| 155/80R13 | 3 | 4.5 | 5 | |
| 165/80R13 | 4 | 4.5 | 5.5 | |
| 165R13 | 4.5 | 5 | 6 | |
| 14" | nine0035 175/80R144.5 | 5 | 6 | |
| 185/80R14 | 4.5 | 5 | 6 | |
| 13" | 135/70R13 | 3.5 | 4 | 4. 5 |
| 145/70R13 | 3.5 | nine0035 4.55 | ||
| 155/70R13 | 4 | 4.5 | 5 | |
| 165/70R13 | 4 | 5 | 5.5 | |
| 175/70R13 | 4.5 | 5 | 6 | |
| 185/70R13 | nine0035 4.55.5 | 6 | ||
| 14" | 165/70R14 | 4 | 5 | 5.5 |
| 175/70R14 | 4.5 | 5 | 6 | |
| 185/70R14 | 4. 5 | 5.5 | 6 | |
| 195/70R14 | 5 | 6 | 6.5 | |
| 13" | 155/65R13 | 4.5 | 4.5 | 5.5 |
| 165/65R13 | 4.5 | 5 | 6 | |
| 175/65R13 | 5 | 5 | 6 | |
| 14" | 155/65R14 | 4.5 | 4.5 | 5.5 |
| 165/65R14 | 4.5 | 5 | 6 | |
| 175/65R14 | 5 | 5 | nine0035 6||
| 185/65R14 | 5 | 5. 5 | 6.5 | |
| 195/65R14 | 5.5 | 6 | 7 | |
| 15" | 145/65R15 | 4 | 4.5 | 5 |
| 155/65R15 | 4.5 | 4.5 | 5 | |
| 165/65R15 | 4.5 | 5 | 6 | |
| 175/65R15 | 5 | 5 | 6 | |
| 185/65R15 | 5 | 5.5 | 6.5 | |
| 195/65R15 | 5.5 | 6 | 7 | |
| 205/65R15 | 5. 5 | 6 | 7.5 | |
| 215/65R15 | 6 | 6.5 | 7.5 | |
| 16" | 215/65R16 | 6 | 6.5 | 7.5 |
| 17" | 235/65R17 | 6.5 | 7 | 8.5 |
| 18" | 235/65R18 | 6.5 | 7 | 8.5 |
| 14" | 165/60R14 | 4.5 | 5 | 6 |
| 175/60R14 | 5 | 5 | 6 | |
| 185/60R14 | 5 | 5. 5 | 6.5 | |
| 195/60R14 | 5.5 | 6 | 7 | |
| 15" | 175/60R15 | 5 | 5 | 6 |
| 185/60R15 | 5 | 5.5 | 6.5 | |
| 195/60R15 | 5.5 | 6 | 7 | |
| 205/60R15 | 5.5 | nine0035 67.5 | ||
| 225/60R15 | 6 | 6.5 | 8 | |
| 16" | 205/60R16 | 5.5 | 6 | 7. 5 |
| 215/60R16 | 6 | 6.5 | 7.5 | |
| 225/60R16 | 6 | 6.5 | 8 | |
| 235/60R16 | 6.5 | 7 | 8.5 | |
| 17" | 225/60R17 | 6 | 6.5 | 8 |
| 14" | 185/55R14 | 5 | 6 | 6.5 |
| 15" | 175/55R15 | 5 | 5.5 | 6 |
| 185/55R15 | 5 | 6 | 6. 5 | |
| 195/55R15 | 5.5 | 6 | nine0035 7||
| 205/55R15 | 5.5 | 6.5 | 7.5 | |
| 225/55R15 | 6 | 7 | 8 | |
| 16" | 195/55R16 | 5.5 | 6 | 7 |
| 205/55R16 | 5.5 | 6.5 | 7.5 | |
| 215/55R16 | 6 | 7 | 7.5 | |
| 225/55R16 | 6 | 7 | 8 | |
| 245/55R16 | 7 | 7. 5 | 8.5 | |
| 17" | 205/55R17 | 5.5 | 6.5 | 7.5 |
| 215/55R17 | 6 | 7 | 7.5 | |
| 225/55R17 | 6 | 7 | 8 | |
| 235/55R17 | 6.5 | 7.5 | 8.5 | |
| 245/55R17 | 7 | 7.5 | 8.5 | |
| 255/55R17 | 7 | 8 | 9 | |
| 15" | 195/50R15 | 5.5 | 6 | 7 | nine0033
| 205/50R15 | 5. 5 | 6.5 | 7.5 | |
| 225/50R15 | 6 | 7 | 8 | |
| 16" | 185/50R16 | 5 | 6 | 6.5 |
| 195/50R16 | nine0035 5.56 | 7 | ||
| 205/50R16 | 5.5 | 6.5 | 7.5 | |
| 215/50R16 | 6 | 7 | 7.5 | |
| 225/50R16 | 6 | 7 | 8 | |
| 235/50R16 | 6.5 | 7.5 | 8.5 | |
| 245/50R16 | 7 | 7. 5 | 8.5 | |
| 255/50R16 | 7 | 8 | 9 | |
| 17" | 205/50R17 | 5.5 | 6.5 | 7.5 |
| 215/50R17 | 6 | 7 | 7.5 | |
| 225/50R17 | 6 | 7 | 8 | |
| 235/50R17 | 6.5 | 7.5 | 8.5 | |
| 18" | 235/50R18 | 6.5 | 7.5 | 8.5 |
| 245/50R18 | 7 | 7.5 | 8. 5 | |
| 19" | 275/50R19 | 7.5 | 8.5 | 9.5 |
| 15" | 195/45R15 | 6 | 6.5 | 7.5 |
| 16" | 195/45R16 | 6 | 6.5 | 7.5 |
| 205/45R16 | 6.5 | 7 | 7.5 | |
| 215/45R16 | 7 | 7 | nine0035 8||
| 225/45R16 | 7 | 7.5 | 8.5 | |
| 245/45R16 | 7. 5 | 8 | 9 | |
| 17" | 205/45R17 | 6.5 | 7 | 7.5 |
| 215/45R17 | 7 | 7 | 8 | |
| 225/45R17 | 7 | 7.5 | 8.5 | |
| 235/45R17 | 7.5 | 8 | 9 | |
| 245/45R17 | 7.5 | 8 | 9 | |
| 255/45R17 | 8 | 8.5 | 9.5 | |
| 18" | 215/45R18 | 7 | 7 | 8 |
| 225/45R18 | 7 | 7. 5 | 8.5 | |
| 235/45R18 | 7.5 | 8 | 9 | |
| 245/45R18 | 7.5 | 8 | 9 | |
| 255/45R18 | 8 | 8.5 | 9.5 | |
| 275/45R18 | 8.5 | 9 | 10.5 | |
| 19" | 245/45R19 | 7.5 | 8 | 9 |
| 20" | 275/45R20 | 8.5 | 9 | 10.5 |
| 16" | 215/40R16 | 7 | 7. 5 | 8.5 |
| 17" | 205/40R17 | 7 | 7.5 | 8 |
| 215/40R17 | 7 | 7.5 | 8.5 | |
| 235/40R17 | 8 | 8.5 | 9.5 | |
| 245/40R17 | 8 | nine0035 8.59.5 | ||
| 255/40R17 | 8.5 | 9 | 10 | |
| 265/40R17 | 9 | 9.5 | 10.5 | |
| 275/40R17 | 9 | 9.5 | 11 | |
| 285/40R17 | nine0035 910 | 11 | ||
| 18" | 205/40R18 | 7 | 7. 5 | 8 |
| 225/40R18 | 7.5 | 8 | 9 | |
| 235/40R18 | 8 | 8.5 | 9.5 | nine0033|
| 245/40R18 | 8 | 8.5 | 9.5 | |
| 255/40R18 | 8.5 | 9 | 10 | |
| 265/40R18 | 9 | 9.5 | 10.5 | |
| 275/40R18 | 9 | 9.5 | nine0035 11||
| 285/40R18 | 9.5 | 10 | 11 | |
| 19" | 225/40R19 | 7. 5 | 8 | 9 |
| 245/40R19 | 8 | 8.5 | 9.5 | |
| 255/40R19 | 8.5 | 9 | 10 | |
| 275/40R19 | 9 | 9.5 | 11 | |
| 20" | 245/40R20 | 8 | 8.5 | 9.5 |
| 17" | 225/35R17 | nine0035 7.58 | 9 | |
| 265/35R17 | 9 | 9.5 | 10.5 | |
| 335/35R17 | 11 | 12 | 13 | |
| 18" | 215/35R18 | 7 | 7. 5 | 8.5 |
| 225/35R18 | 7.5 | 8 | 9 | |
| 235/35R18 | 8 | 8.5 | 9.5 | |
| 255/35R18 | 8.5 | 9 | 10 | |
| 265/35R18 | 9 | nine0035 9.510.5 | ||
| 275/35R18 | 9 | 9.5 | 11 | |
| 285/35R18 | 9.5 | 10 | 11 | |
| 295/35R18 | 10 | 10.5 | 11.5 | |
| 345/35R18 | 11. 5 | 12 | 13.5 | |
| 19" | 225/35R19 | 7.5 | 8 | 9 |
| 235/35R19 | 8 | 8.5 | 9.5 | |
| 245/35R19 | 8 | 8.5 | nine0035 9.5||
| 255/35R19 | 8.5 | 9 | 10 | |
| 265/35R19 | 9 | 9.5 | 10.5 | |
| 275/35R19 | 9 | 9.5 | 11 | |
| 285/35R19 | 9.5 | nine0035 1011 | ||
| 295/35R19 | 10 | 10. 5 | 11.5 | |
| 20" | 245/35R20 | 8 | 8.5 | 9.5 |
| 255/35R20 | 8.5 | 9 | 10 | |
| 275/35R20 | 9 | 9.5 | 11 | |
| 21" | 245/35R21 | 8 | 8.5 | 9.5 |
| 255/35R21 | 8.5 | 9 | 10 | |
| 18" | 285/30R18 | 9.5 | 10 | 10.5 |
| 295/30R18 | 10 | 10. 5 | 11 | |
| 315/30R18 | 10.5 | 11 | 11.5 | |
| 335/30R18 | 11.5 | 12 | 12.5 | nine0033|
| 345/30R18 | 11.5 | 12 | 12.5 | |
| 19" | 265/30R19 | 9 | 9.5 | 10 |
| 275/30R19 | 9 | 9.5 | 10 | |
| 285/30R19 | nine0035 9.510 | 10.5 | ||
| 295/30R19 | 10 | 10.5 | 11 | |
| 305/30R19 | 10. 5 | 11 | 11.5 | |
| 345/30R19 | 11.5 | 12 | 12.5 | |
| 20" | 235/30R20 | 8.5 | 8.5 | 9.5 |
| 245/30R20 | 8.5 | 8.5 | 9.5 | |
| 255/30R20 | 9 | 9 | 10 | |
| 285/30R20 | 10 | 10 | 11 | |
| 335/30R20 | 12 | 12 | 13 | |
| 21" | 255/30R21 | 9 | 9 | 10 |
| 285/30R21 | 10 | 10 | 11 | nine0033|
| 295/30R21 | 10 | 10. 5 | 11 | |
| 22" | 255/30R22 | 9 | 9 | 10 |
| 19" | 315/25R19 | 11 | 11.5 | 12 |
| 20" | 285/25R20 | 10.5 | ||
| 295/25R20 | 10 | 10.5 | 11 | |
| 325/25R20 | 11.5 | 12 | 12.5 | |
| 21" | 295/25R21 | 10 | 10.5 | 11 |
| 22" | 295/25R22 | 10 | 10. 5 | 11 |
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Tires wear out faster, and they are changed seasonally twice a year, so they are most often selected for the rim. But it also happens the other way around: the tire is still intact, but the disk is damaged.
And if this is not iron that can be rolled, but casting, as a rule, you have to change all 4 rims. Finding the right model is not an easy task. And even if there is, then one or two discs in the store may not be sold. So you have to figure out how to choose wheels for tires according to tire size. We will try to help you in this matter. nine0003
What to choose, and according to what criteria
All tire parameters are indicated not only on the label, but also stamped in clear print on the rubber itself.
Everything you need to know for selection, read on the tire
First of all, in order to select a wheel for a tire, pay attention to the diameter of the latter - it is of the greatest importance when selecting, and must necessarily match.
In order for the size to fit perfectly, the diameter of the rim must match the bore size of the tire
Note: For passenger cars and commercial vehicles, the range of diameters (although dealers and motorists refer to them as radii) varies from 13-22 inches.
For a disc, this size indicates its outer diameter, and for a tire, the diameter of the mounting hole.
Tire size
The next very important dimension is the rim width (P), which should not exceed the corresponding tire size or be much smaller. The narrowest tire for small cars is 155 mm, which corresponds to a rim width of 5 inches. On the same discs, you can put a tire up to 185 mm wide, as it is soft and able to take a given shape. But with an even greater increase in the width of the profile, it is necessary to increase the width of the disk. nine0003
In total, there are 13 variations of this parameter for passenger car rims, and in order to select the width of the rims in relation to the tire, it is enough to familiarize yourself with this information:
| for rims | ||||
| Tire profile width range (minimum, maximum), mm | Optimal tire width, mm | |||
| 5 | 155-185 | 165-175 | ||
5. 5 | 165-195 | 175-185 | ||
| 6 | 175-205 95-195-1900-195-1900-195-1900-1900-195-1900-1900-195.1 | 6.5 | 185-215 | 195-205 |
| 7 | 195-225 | 205-215 | ||
| 7.5 | 205-235 | 215-225 8 | 215-245 | 225-235 |
| 8.5 | 225-255 | 235-245 | ||
| 23-265 | 245-255 | |||
| 9.5 | 245-275 | |||
| 10 | 255-285 | 265-275 | ||
| 10,5 | 265-295 | 275-285 | ||
| 11 | 275-305 | 285-295 |
Which rim fits which rubber can be seen in the table. If you pay attention, with the same tire profile width, you can choose several options for the width of the disk. For example, for the most popular foreign brand 205 profile, you can take disc 6; 6.
5; 7 and 7.5 inches. nine0003
Tip: It is better not to take into account the extreme values (here it is 6 and 7.5), but look only at the optimal ones, which are 6.5 and 7 inches. A rim that is too narrow can cause the tire to flare, while a rim that is too wide will stretch too far and be easily damaged.
When buying discs in a store, the dimensions are always indicated on the price tag. If you are going to buy used discs, then their width, which is marked with the letter J, can be viewed on the disc itself. The diameter of the rim is always indicated next to it. nine0003
You will find out whether the rubber fits on the wheel by reading these dimensions
Before choosing the wheels for size, we advise you to pay attention to the tire profile. This parameter is the percentage of the profile height (sidewall) to the width, and is denoted by the letter H. arch and touch it during rotation.
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It is very important to choose the right wheels for the width of the rubber
As you can see, with an increase in the diameter of the wheel, its width also increases, but the height of the profile, on the contrary, decreases - just so that the wheel assembly can freely fit into the arch and rotate without interference. We advise you to keep this in mind before choosing tires for wheels.
If you take wheels without trying them on, slightly deviating from the size recommended by the manufacturer, you can only find out that the tire catches on the arch while driving.
