When choosing car tires, it is important to remember that it is of great importance to match the dimension of the tire to the dimension of the wheels. Everything is clear with the diameter - a 15'' tire with a diameter of 15'' should be put on a disk with a diameter of 15''. The confusion usually arises with the width of the tire and rim. Their discrepancy can lead to a number of completely undesirable consequences associated with the operation of tires. The contact patch may become irregular in shape, tire wear may increase, and the handling and driving performance of the car may deteriorate. In order not to make a mistake with the choice - use the correspondence table.
You can also do the calculation yourself. To do this, consider an example for a tire with a width of 215 mm and a diameter of 16.
1) We translate the width of the rubber in cm: 215 mm = 21.5 cm
2) Convert the resulting value to inches: 1 cm \u003d 2.54 inches, divide 21.5 by 2.54, we get 8, 46 - round to 8.5
3) We take 25-30% of the obtained value, in our case: 2.38
4) The resulting number is subtracted from the width of the tire and rounded up to tenths 8.5 - 2.38 \u003d 6.1
5) The rim width of the rim must be 6.1 inches or 155mm.
For discs up to and including 14 inches in diameter, an error of 0.5 to 1 inch is possible.
For discs with a diameter of 15 inches or more, the allowable error is 1.5 inches.
As a calculation, it is better to calculate the allowable value interval, namely, calculate 25% and 30%, where 25% will be the maximum and 30% the minimum width of the disc rim.
Correspondence table for tires and rims for passenger cars
|
Ø |
Tire size |
Disc rim width |
|||
|
Min. |
Recom. |
Max. |
|||
|
Series 80 |
|||||
|
Series 70 |
|||||
|
Series 65 |
|||||
|
Series 60 |
|||||
|
Series 55 |
|||||
|
Series 50 |
|||||
|
Series 45 |
|||||
|
Series 40 |
|||||
|
Series 35 |
|||||
|
Series 30 |
|||||
It is always better to purchase complete wheels right away, but if you suddenly had to start selecting tires according to disks, then don’t worry, now we will study all the features of this process so that even an inexperienced person can handle it.
Main parameters and their designation
First you need to familiarize yourself with the main parameters and their designation. The wheel diameter is indicated by the symbol "D" and is considered the most significant characteristic. It is very important to follow the dimensions recommended by the manufacturer. The increased diameter will contribute to the distortion of the speedometer readings. It is also possible for the wheel to rub over the elements of the body and chassis.
The diameter of the rims is designated "dd", but their width (the distance between the inner edges of the rim) is "Wd", and in the marking it is usually indicated in inches. Height also matters, this characteristic has the code "dt". Low profile tires wear out faster and are not suitable for all roads. If the condition of the road surface is not ideal, then it is better not to buy such tires, since in this case the load on the suspension increases, and there is a possibility of disk deformation. In addition, they are noisier.
"Wt" - tire width. For driving on a dry track, wide tires are better, as this shortens the braking distance. For urban conditions and slippery roads, it is recommended to use narrow tires.
Before talking directly about the selection of tires by disks, it is necessary to disassemble a little in the marking of one and the other. Let's start with disks. The marking may be embossed anywhere except on the inner surface facing the rim. To make it easier to understand, consider the decryption using a specific example.
Let's say you found the following code "6.5JJx13FH6x98ET20d62.1". The first is the width of the disk and it is indicated in inches, in our case it is 5.5. to convert this value to millimeters, multiply it by 25.4. This is followed by a Latin letter (P, D, B, K, J) or a combination of them (JJ, JK). This symbol characterizes the shape of the profile contour, the height of the shelves, their angle of inclination and the radius of curvature. "JJ" indicates that the car is full drive.
If you see the symbol “x” behind the letter designations, then this means that the disc has a one-piece design, but collapsible copies in the marking contain the “-” sign. Next, the diameter of the disks is indicated, followed by the hump index. This is a value indicating the annular protrusions along the rims. They have a very important function - fixing tubeless tires during turns. A simple hump is denoted by a single letter "H", flat, as in our case, "FH", and an asymmetric one - "AH". There are designs in which there are no humps.
Next, the value that you need to pay special attention to when choosing tires for disks is indicated, this is the location of the mounting holes, in our case “6x98”. This suggests that there are 6 of them, and the diameter of the circle is 98 mm. The number of holes ranges from 4 to 6, and the circumference can range from 98 to 137.9 mm. The following indicates the distance between the plane of attachment of the disk to the hub and its vertical axis. This parameter is called disc overhang and is denoted by a combination of letters "ET". The number following them indicates the offset value in millimeters, in our case it is 20 mm.
The overhang can be positive, zero, or negative. Suspension and steering are adjusted depending on this parameter. The last in the marking indicates the diameter of the mounting hole. For passenger cars, this value is in the range from 50 to 70 mm. Quite often, the maximum load, the date of manufacture and the method of production are also specified. Discs are available forged, cast and stamped.
Tire marking
If you decide to start selecting tires according to the width of the disks, then you definitely need to be able to decipher the rubber markings. After all, this code contains all the necessary information. You can find it on the side surface of the tire. However, it also indicates a lot of other information about rubber, starting from the country of the manufacturer, model and ending with the purpose and type. This information, of course, is of great importance, as it affects the quality of the product, but if we are talking about the selection of rubber for certain disks, then they do not play a decisive role.
But the most important information is contained in the code, called the standard size. To make it as clear as possible, consider the decryption using a specific example. Let's say you found the following code "225/50 R14" on the side of the rubber. The first number indicates the width of the profile in millimeters. Moreover, measurements are made taking into account the sidewalls. Next comes the height value, expressed as a percentage relative to the width. With us it is 50%, which means that in order to come to the size in millimeters, you need 225x50%, it turns out 112.5 mm.
The next symbol gives information about the construction of the cord. "R" means that the tire has a radial ply. And the number following it expresses the mounting size of the rim, it is indicated in inches. In fact, this is the most important information that is needed when selecting tires by size. The marking also contains a column with speed indices, as well as loads. There are many tables on the Internet in which these alphanumeric designations are translated into specific values \u200b\u200bof loads and speeds.
What will help you choose the right tires?
The choice of rubber is a very responsible task, because if you put tires that do not meet its technical characteristics on a car, then problems cannot be avoided. These may be incorrect speedometer readings, and even wheel arches touching the rubber. How to find out what tires are needed if, for example, you bought a used car and faced with their replacement for the first time?
There are several ways to do this. The easiest way is to look in the book for the operation of the machine, in it you will surely find the necessary data. Sometimes we don’t have such an opportunity, in this case you can look under the glove box lid, where there is a special table with the necessary information. True, there are cars where such a table is not provided. What to do?
Don't be discouraged, you can always go to specialized sites that sell tires, and by filling out a plate (year, brand and other information about the vehicle), you will receive detailed information on rubber that is ideal for your car. If you decide to put tires of a different size on the car, then the tire calculator will help you track the change in the linear dimensions of the rubber and the speedometer reading.
How to match tires and rims?
But there are cases, again, they are more often associated with supported cars, when it is necessary to select tires according to the size of the disks, because these two components should correspond to each other as much as possible. Then simple rules will help. For example, the width of the rubber profile should be 25–30% larger than the size of the rim. So, for example, if the width of the disk is 5.5 inches, then, adding 30% to this value, we get 7.15 inches or 185 mm. It is important that these two parts match in their central holes. But if for some reason this does not work out, then a special adjusting ring will come to the rescue. Its outer diameter corresponds to the disc hole, and its inner diameter corresponds to the hub.
But this is not all the features of selecting tires for. It is also necessary that the tires strictly correspond to the diameter of the circumference of the disc mount centers. A maximum run-out of 2 mm is allowed. In this case, special bolts with eccentrics are used for fixing. But it is best if these parameters match 100%.
In order not to miscalculate exactly with the choice, you can refer to special tables for selecting tires for disks, where their sizes and correspondence are indicated.
There is also such a thing as maximum load. Usually they rarely pay attention to it, since disk manufacturers make their products with a good margin of safety. However, if you decide to experiment and, for example, install wheels from a sedan on a jeep, then be sure to find out this characteristic. It is quite possible that the disk will not withstand such a load, and the first hole or hillock will lead to very sad consequences.
Car owners use a tire calculator to select tires and rims of the right size. All calculations are done online. The user does not have to deal with lengthy, incomprehensible calculations. The application is multifunctional, since the motorist will be able to understand how to change the dimensions of the wheel, taking into account changes in the size of tires and wheels. Consider the features of using the service.
Tire calculator functionality
To help with the selection of tires suitable for a particular car in terms of size and characteristics, the tire selection calculator can. Vehicle owners resort to the services of the service when it is time to replace the tires and wheels on the vehicle. In order not to waste time on meaningless "changing shoes", checks, use the proposed online service. Tire calculator features:
- you can calculate the size of tires;
- the service provides different parameters - wheel diameters, changes in the height of the clearance between the road and the car (clearance), track expansion;
- help in converting inches to millimeters or vice versa, using the American and European size charts.
The tire calculator has been designed to speed up the selection of tires, making the procedure much easier. Since every owner of a car faced the difficulties of choosing, online calculators very quickly gained popularity among users.
How to use the tire calculator
There are several tips to help you use the tire size calculator for its intended purpose. The step-by-step instruction consists of the following steps:
- In the form you will need to enter the size of the tires installed on the car, as well as those that you would like to install.
- The user will see a special table with the results of calculations. From this data, it will be possible to find out which tires are needed for a particular vehicle.
- After selecting tires, you can proceed to the calculation of the size of the disks. Here you will need to set the exact data - the maximum / minimum width of the disk installed on the car. All calculations will be performed automatically.
- If you need to convert inches to millimeters, you can use the online converter. This action will allow you to find analogues with American sizes and with European ones. Comparison through the tire calculator will be as accurate as possible, since all the necessary information has been entered into the online service database.
The general selection procedure is very simple, but the owner of the car will definitely need to enter the initial data. The parameters should be as accurate as possible so that there are no errors or inaccuracies in subsequent results.
You can use this service on our website. The program is freely available, anyone can make calculations in a few minutes. To simplify the process of use, it is worth using the instructions given.
Do you want to choose a tire for your car, but do not understand tire markings well? It's not a problem! In this section, we will help you figure out what tire parameters are, what they mean, and which tire is right for your car.
Find tires / tire catalogDeciphering tire markings.
195/65 R15 91 T XL
195 is the tire width in mm.
65 - Proportionality, i.e. profile height to width ratio. In our case, it is equal to 65%. Simply put, with the same width, the larger this indicator, the higher the tire will be and vice versa. Usually this value is called simply - "profile".
Since the tire profile is a relative value, it is important to consider when choosing rubber that if you want to put tires with a size of 205/65 R15 instead of the size 195/65 R15, then not only the width of the tire will increase, but also the height! Which in most cases is unacceptable! (except when both of these sizes are indicated in the car's operating book). You can calculate the exact data on changing the outer dimensions of the wheel in a special tire calculator.
If this ratio is not indicated (for example, 185/R14С), then it is equal to 80-82% and the tire is called full profile. Reinforced tires with this marking are usually used on minibuses and light trucks, where a large maximum wheel load is very important.
R- means a tire with a radial cord (in fact, almost all tires are made this way now).
Many mistakenly believe that R- stands for the radius of the tire, but this is precisely the radial design of the tire. There is also a diagonal design (indicated by the letter D), but recently it has practically not been produced, since its performance is noticeably worse.
15 - diameter of the wheel (disk) in inches. (It is the diameter, not the radius! This is also a common mistake). This is the “landing” diameter of the tire on the disk, i.e. is the inside size of the tire or the outside of the rim.
91 - load index. This is the level of maximum permissible load on one wheel. For passenger cars, it is usually done with a margin and is not a decisive factor when choosing tires (in our case, IN - 91 - 670 kg.). For minibuses and small trucks, this parameter is very important and must be observed.
Tire load index table:
T- tire speed index. The larger it is, the faster you can drive on this tire (in our case, IS - H - up to 210 km / h). Speaking about the tire speed index, I would like to note that with this parameter, the tire manufacturer guarantees the normal operation of the rubber when the car is constantly moving at the specified speed for several hours.
Speed index table:
American tire markings:
There are two different markings for American tires. The first one is very similar to the European one, only the letters “P” (Passanger - for a passenger car) or “LT” (Light Truck - light truck) are placed before the size. For example: P 195/60 R 14 or LT 235/75 R15. And another tire marking, which is fundamentally different from the European one.
For example: 31x10.5 R15(corresponds to European size 265/75 R15)
31
is the outside diameter of the tire in inches.
10.5
- tire width in inches.
R- a tire of a radial design (older models of tires were with a diagonal design).
15
is the inner diameter of the tire in inches.
Generally speaking, except for inches that are unusual for us, the American tire marking is logical and more understandable, unlike the European one, where the height of the tire profile is not constant and depends on the width of the tire. And here everything is simple with decoding: the first digit of the standard size is the outer diameter, the second is the width, the third is the inner diameter.
Additional information indicated in the marking on the sidewall of the tire:
XL or Extra Load- Reinforced tire, the load index of which is 3 units higher than that of conventional tires of the same size. In other words, if a given tire has a load index of 91 marked XL or Extra Load, then this means that with this index, the tire is able to withstand a maximum load of 670 kg instead of 615 kg (see the table of tire load indices).
M+S or M&S tire marking (Mud + Snow) - mud plus snow and means that the tires are all-season or winter. Many summer tires for SUVs are labeled M&S. However, these tires must not be used in winter, as winter tires have a completely different rubber compound and tread pattern, and the M&S badge indicates good flotation performance.
All Season or AS all season tires. Aw (Any Weather) - Any weather.
Pictogram * (snowflake)- rubber is designed for use in harsh winter conditions. If this marking is not on the sidewall of the tire, then this tire is intended for use only in summer conditions.
Aquatred, Aquacontact, Rain, Water, Aqua or pictogram (umbrella)- special rain tires.
outside and inside; asymmetric tires, i.e. It is important not to confuse which side is the outside and which is the inside. When installing, the Outside inscription must be on the outside of the car, and Inside on the inside.
RSC(RunFlat System Component) - RunFlat tires are tires on which you can continue driving a car at a speed of no more than 80 km / h with a FULL pressure drop in the tire (due to a puncture or cut). On these tires, depending on the manufacturer's recommendations, you can drive from 50 to 150 km. Different tire manufacturers use different designations for RSC technology. For example: Bridgestone RFT, Continental SSR, Goodyear RunOnFlat, Nokian Run Flat, Michelin ZP, etc.
rotation or arrow this marking on the sidewall of the tire indicates a directional tire. When installing the tire, you must strictly observe the direction of rotation of the wheel, indicated by the arrow.
Tubeless - tubeless tire. In the absence of this inscription, the tire can only be used with a camera. Tube Type - indicates that this tire must be used only with a tube.
Max Pressure; maximum allowable tire pressure. Max Load - the maximum allowable load on each wheel of the car, in kg.
Reinforced or the letters RF in the size (for example 195/70 R15RF) means that this is a reinforced tire (6 layers). The letter C at the end of the size (for example 195/70 R15C) indicates a truck tire (8 layers).
Radial - this marking on the rubber in the standard size means that this is a radial tire design. Steel means that there is a metal cord in the tire structure.
Letter E(in a circle) - the tire meets the European requirements of ECE (Economic Commission for Europe). DOT (Department of Transportation - US Department of Transportation) is an American quality standard.
Temperature A, B or C heat resistance of tires at high speeds on a test bench (A is the best indicator).
Traction A, B or C- the ability of the tire to brake on a wet roadway.
Treadwear; relative expected mileage compared to a specific US standard test.
TWI (Tread Wear Indication)- Tire tread wear indicators. The marking on the TWI wheel can also be with an arrow. Pointers are located evenly in eight or six places around the entire circumference of the tire and show the minimum allowable tread depth. The wear indicator is made in the form of a protrusion with a height of 1.6 mm (the minimum tread value for light vehicles) and is located in the tread recess (usually in the drainage grooves).
DOT- Encoded manufacturer's address, tire size code, certificate, issue date (week/year).
The ratio of the width of the wheel and the width of the rubber affects the stability of the car. To ensure safe and comfortable driving, it is necessary that the ratio of these parameters be within the optimal limits - recommended by the manufacturer, otherwise the grip of the tire with the disk and the roadway worsens, the risk of an accident increases.
Theoretical part
assembled wheelThe vehicle owner's manual indicates the dimensions of the tires and rims. But many motorists try to install larger wheels on the car, as they believe that such actions will increase the stability of the vehicle. This opinion is not entirely correct. If you slightly increase the rim of the product, you can get the following benefits:
- increase in speed;
- improved manageability;
- increase the stability of the machine.
If the disk is enlarged more than the permissible norm, negative consequences are possible:
- grip deterioration - the wheel will touch the fender of the car;
- increased load on the transmission;
- reduction in vehicle control.
If you want to install, for example, low-profile tires to make driving easier, keep in mind that such actions can lead to negative consequences:
- an increase in the risk of disc damage when driving on uneven road surfaces (pits, ledges, and so on);
- an increase in the load on the suspension of the car while driving through pits and other irregularities.
The ideal option is the selection of products, taking into account the compatibility of tires and wheels in size. It can be achieved by:
- recommendations of the car dealer - the correspondence between the width of the disc and the rubber is indicated in the car manual;
- data of special tables for the selection of wheels and tires by size.
It is possible to choose the size of rubber for the size of the disk and vice versa, using special tables, taking into account the width of the rim of the disk, it should be 25-30% less than the width of the rubber profile. For example, for 175 / 80R14 rubber, the width is 175 mm, the profile height is 80%, the disc diameter is 14 inches. We calculate the width of the profile in inches - 175mm = 6.89 inches, if we subtract 30% from this value and round the resulting number to the nearest disc rim value, we get 5 inches. A 175/80R14 tire is calculated to fit a rim width of 5 inches.
Installing too large (picture 1) and too small (picture 2) wheels on the vehicle.
Figure 1 Installing larger wheels 
Figure 2 Installing smaller wheels Tires R12
Series 82
Tires 125R12: recommended rim width 3.5; minimum 3.0; maximum 4.0.
Tires: 135R12 recommended rim width 4.0; minimum 3.5; maximum 4.5.
Tires 145R12: recommended rim width 4.0; minimum 3.5; maximum 5.0.
Tires: 155R12 recommended rim width 4.5; minimum 4.0; maximum 5.0.
Series 70
Tires R13
Series 82
Tires 145R13: recommended rim width 4.0; minimum 3.5; maximum 5.0.
Tires 155R13: recommended rim width 4.5; minimum 4.0; maximum 5.5.
Tires 165R13: recommended rim width 4.5; minimum 4.0; maximum 5.5.
Tires 175R13: recommended rim width 5.0; minimum 4.5; maximum 6.0.
Series 80
Tires 135/80R13: recommended rim width 3.5; minimum 3.5; maximum 4.5.
Tires 145/80R13: recommended rim width 4.0; minimum 3.5; maximum 5.0.
Tires 155/80R13: recommended rim width 4.5; minimum 4.0; maximum 5.5.
Tires 165/80R13: recommended rim width 4.5; minimum 4.0; maximum 5.5.
Series 70
Tires: 135/70R13 recommended rim width 4.0; minimum 3.5; maximum 4.5.
Tires: 145/70R13 recommended rim width 4.5; minimum 4.0; maximum 5.0.
Tires: 155/70R13 recommended rim width 4.5; minimum 4.0; maximum 5.5.
Tires: 165/70R13 recommended rim width 5.0; minimum 4.5; maximum 6.0.
Tires: 175/70R13 recommended rim width 5.0; minimum 5.0; maximum 6.0.
Tires: 185/70R13 recommended rim width 5.5; minimum 5.0; maximum 6.5.
Tires: 195/70R13 recommended rim width 6.0; minimum 5.2; maximum 7.0.
Series 65
Tires 155/65R13: recommended rim width 4.5; minimum 4.0; maximum 5.5.
Tires 165/65R13: recommended rim width 5.0; minimum 4.5; maximum 6.0.
Tires 175/65R13: recommended rim width 5.0; minimum 5.0; maximum 6.0.
Series 60
Tires 175/60R13: recommended rim width 5.0; minimum 5.0; maximum 6.0.
Tires 185/60R13: recommended rim width 5.5; minimum 5.5; maximum 6.5.
Tires 205/60R13: recommended rim width 6.0; minimum 5.5; maximum 7.0.
Series 55
Tires R14
Series 82
Tires 145R14: recommended rim width 4.0; minimum 3.5; maximum 5.0.
Tires 155R14: recommended rim width 4.5; minimum 4.0; maximum 5.0.
Tires 165R14: recommended rim width 4.5; minimum 4.0; maximum 5.5.
Tires 175R14: recommended rim width 5.0; minimum 4.5; maximum 6.0.
Tires 185R14: recommended rim width 5.5; minimum 4.5; maximum 6.0.
Series 80
Series 70
Tires 165/70R14: recommended rim width 5.0; minimum 4.5; maximum 6.0.
Tires 175/70R14: recommended rim width 5.0; minimum 5.0; maximum 6.0.
Tires 185/70R14: recommended rim width 5.5; minimum 5.0; maximum 6.5.
Tires 195/70R14: recommended rim width 6.0; minimum 5.5; maximum 7.0.
Tires 205/70R14: recommended rim width 6.0; minimum 5.5; maximum 7.5.
Series 65
Tires 155/65R14: recommended rim width 4.5; minimum 4.0; maximum 5.5.
Tires 165/65R14: recommended rim width 5.0; minimum 4.5; maximum 6.0.
Tires 175/65R14: recommended rim width 5.0; minimum 5.0; maximum 6.0.
Tires 185/65R14: recommended rim width 5.5; minimum 5.0; maximum 6.5.
Tires 195/65R14: recommended rim width 6.0; minimum 5.5; maximum 7.0.
Series 60
Tires 165/60R14: recommended rim width 5.0; minimum 4.5; maximum 6.0.
Tires 175/60R14: recommended rim width 5.0; minimum 5.0; maximum 6.0.
Tires 185/60R14: recommended rim width 5.5; minimum 5.0; maximum 6.5.
Tires 195/60R14: recommended rim width 6.0; minimum 5.5; maximum 7.0.
Tires 205/60R14: recommended rim width 6.0; minimum 5.5; maximum 7.5.
Series 55
Tires R15
Series 82
Tires 125R15: recommended rim width 3.5; minimum 3.0; maximum 4.0.
Tires 135R15: recommended rim width 4.0; minimum 3.5; maximum 4.5.
Tires 145R15: recommended rim width 4.0; minimum 3.5; maximum 5.0.
Tires 155R15: recommended rim width 4.5; minimum 4.0; maximum 5.0.
Tires 165R15: recommended rim width 4.5; minimum 4.0; maximum 5.5.
Tires 185R15: recommended rim width 5.5; minimum 4.5; maximum 6.0.
Series 80
Series 70
Tires 175/70R15: recommended rim width 5.0; minimum 5.0; maximum 6.0.
Tires 195/70R15: recommended rim width 6.0; minimum 5.5; maximum 7.0.
Tires 235/70R15: recommended rim width 7.0; minimum 6.5; maximum 8.5.
Series 65
Tires 185/65R15: recommended rim width 5.5; minimum 5.0; maximum 6.5.
Tires 195/65R15: recommended rim width 6.0; minimum 5.5; maximum 7.0.
Tires 205/65R15: recommended rim width 6.0; minimum 5.5; maximum 7.5.
Tires 215/65R15: recommended rim width 6.5; minimum 6.0; maximum 7.5.
Tires 225/65R15: recommended rim width 6.5; minimum 6.0; maximum 8.0.
Series 60
Tires 195/60R15: recommended rim width 6.0; minimum 5.5; maximum 7.0.
Tires 205/60R15: recommended rim width 6.0; minimum 5.5; maximum 7.5.
Tires 215/60R15: recommended rim width 6.5; minimum 6.0; maximum 8.0.
Tires 225/60R15: recommended rim width 6.5; minimum 6.0; maximum 8.0.
Series 55
Tires 185/55R15: recommended rim width 6.0; minimum 5.0; maximum 6.5.
Tires 195/55R15: recommended rim width 6.0; minimum 5.5; maximum 7.0.
Tires 205/55R15: recommended rim width 6.5; minimum 5.5; maximum 7.5.
Tires 225/55R15: recommended rim width 7.0; minimum 6.0; maximum 8.0.
Series 50
Tires 195/50R15: recommended rim width 6.0; minimum 5.5; maximum 7.0.
Tires 205/50R15: recommended rim width 6.5; minimum 5.5; maximum 7.5.
Tires 225/50R15: recommended rim width 7.0; minimum 6.0; maximum 8.0.
Series 45
Tires R16
Series 65
Series 60
Series 55
Tires 205/55R16: recommended rim width 6.5; minimum 5.5; maximum 7.5.
Tires 225/55R16: recommended rim width 7.0; minimum 6.0; maximum 8.0.
Tires 245/55R16: recommended rim width 7.5; minimum 7.0; maximum 8.5.
Series 50
Tires 205/50R16: recommended rim width 6.5; minimum 5.5; maximum 7.5.
Tires 225/50R16: recommended rim width 7.0; minimum 6.0; maximum 8.0.
Tires 235/50R16: recommended rim width 7.5; minimum 6.5; maximum 8.5.
Tires 255/50R16: recommended rim width 8.0; minimum 7.0; maximum 9.0.
Series 45
Tires 195/45R16: recommended rim width 6.5; minimum 6.0; maximum 7.5.
Tires 205/45R16: recommended rim width 7.0; minimum 6.5; maximum 7.5.
Tires 225/45R16: recommended rim width 7.5; minimum 7.0; maximum 8.5.
Tires 245/45R16: recommended rim width 8.0; minimum 7.5; maximum 9.0.
Series 40
Tires R17
Series 55
Series 50
Series 45
Tires 215/45R17: recommended rim width 7.0; minimum 7.0; maximum 8.5.
Tires 225/45R17: recommended rim width 7.5; minimum 7.0; maximum 8.5.
Tires 235/45R17: recommended rim width 8.0; minimum 7.5; maximum 9.0.
Tires 245/45R17: recommended rim width 8.0; minimum 7.5; maximum 9.0.
Tires 255/45R17: recommended rim width 8.5; minimum 8.0; maximum 9.5.
Series 40
Tires 215/40R17: recommended rim width 7.5; minimum 7.0; maximum 8.5.
Tires 235/40R17: recommended rim width 8.5; minimum 8.0; maximum 9.5.
Tires 245/40R17: recommended rim width 8.5; minimum 8.0; maximum 9.5.
Tires 255/40R17: recommended rim width 9.0; minimum 8.5; maximum 10.0.
Tires 265/40R17: recommended rim width 9.5; minimum 9.0; maximum 10.5.
Tires 275/40R17: recommended rim width 9.5; minimum 9.0; maximum 11.0.
Tires 285/40R17: recommended rim width 10.0; minimum 8.5; maximum 11.0.
Series 35
Tires 245/35R17: recommended rim width 8.5; minimum 8.0; maximum 9.5.
Tires 265/35R17: recommended rim width 9.5; minimum 9.0; maximum 10.5.
Tires 335/35R17: recommended rim width 11.5; minimum 11.0; maximum 13.0.
Tires R18
Series 50
Series 45
Series 40
Tires 225/40R18: recommended rim width 8.0; minimum 7.5; maximum 9.0.
Tires 235/40R18: recommended rim width 8.0; minimum 7.5; maximum 9.0.
Tires 245/40R18: recommended rim width 8.5; minimum 8.0; maximum 9.5.
Tires 265/40R18: recommended rim width 9.5; minimum 9.0; maximum 10.5.
Series 35
Series 30
Tires R19
Series 50
Series 45
Series 40
Tires 225/40R19: recommended rim width 8.0; minimum 7.5; maximum 9.0.
Tires 245/40R19: recommended rim width 8.5; minimum 8.0; maximum 9.5.
Tires 255/40R19: recommended rim width 9.0; minimum 8.5; maximum 10.0.
Tires 275/40R19: recommended rim width 9.5; minimum 9.0; maximum 11.0.
Series 35
Tires 225/35R19: recommended rim width 8.0; minimum 7.5; maximum 9.0.
Tires 235/35R19: recommended rim width 8.5; minimum 8.0; maximum 9.5.
Tires 245/35R19: recommended rim width 8.5; minimum 8.0; maximum 9.5.
Tires 255/35R19: recommended rim width 9.0; minimum 8.5; maximum 10.0.
Tires 265/35R19: recommended rim width 9.5; minimum 9.0; maximum 10.5.
Tires 275/35R19: recommended rim width 9.5; minimum 9.0; maximum 11.0.
Tires 285/35R19: recommended rim width 10.0; minimum 9.5; maximum 11.0.
Tires 295/35R19: recommended rim width 10.5; minimum 10.0; maximum 11.5.
Series 30
Tires 265/30R19: recommended rim width 9.5; minimum 9.0; maximum 10.0.
Tires 275/30R19: recommended rim width 9.5; minimum 9.0; maximum 10.0.
Tires 285/30R19: recommended rim width 10.0; minimum 9.5; maximum 10.5.
Tires 295/30R19: recommended rim width 10.5; minimum 10.0; maximum 11.0.
Tires 305/30R19: recommended rim width 11.0; minimum 10.5; maximum 11.5.
Tires 345/30R19: recommended rim width 12.0; minimum 11.5; maximum 12.5.
Episode 25
Tires R20
Series 40
Series 35
Tires R21
Series 35
Series 30
Tires 255/30R21: recommended rim width 9.0; minimum 9.0; maximum 10.0.
Tires 285/30R21: recommended rim width 10.0; minimum 10.0; maximum 11.0.
Tires 295/30R21: recommended rim width 10.5; minimum 10.0; maximum 11.0.
Episode 25
Tires R22
Series 30
Episode 25
Wheel with suspension elements Conclusion
For the stability of the car, it is necessary to comply with the width of the wheels and the width of the tires specified by the vehicle manufacturer. If you want to increase the size of disks or tires, to improve the appearance of the car or its characteristics, you should use special tables indicating the relationship between the parameters of tires and rubber. At the same time, keep in mind: even if you have correctly chosen the appropriate dimensions of the indicated products, there is a possibility that the disk will not be able to be installed on the car due to the design features of the car. For example, the disk will rest against suspension parts or a caliper. This situation may arise due to the cast shape of the disc, so before beading the tire on the wheel, you should first try it on.
