It may seem like a bunch of random numbers and letters are on your tire sidewall, but they all actually mean something. These letters and numbers tell you the tire size, type of tire and the safety standards. We will teach you how to read your tires below.
The first character(s) in a tire size designate the tire's class. In this example, "P" indicates that the tire is a passenger car tire. An "LT" before the tire size designates a light truck tire, and no letter before the size indicates that it is a European metric tire.
A metric tire's section width is measured in millimeters. This measurement is taken from sidewall to sidewall. In this example, the section width of the tire is 205mm.
This number refers to the height of the sidewall. It is a percentage of the section width. In this example, 65 percent of the section width of 205mm equals 133. 25.
The "R" in this example indicates radial tire construction.
This indicates the wheel diameter in inches.
The first number indicates the tire's diameter in inches. In this example, the tire manufacturer has determined that this is a 35" tire. However, actual measured overall diameters vary from one manufacturer to the next.
Standard tire width is indicated in inches with the decimal point removed. Therefore, in this example, the number 1250 indicates that this tire is 12.5" wide.
The "R" in this example indicates radial tire construction.
This indicates the wheel diameter in inches.
The last letter in a standard tire size indicates the number of layers used in the construction of the tire.
If there is no letter, the tire has the standard 4 plies. A "C" indicates 6 plies, a "D" indicates 8 plies, and an "E" indicates 10 plies. The higher the number of plies in a tire, the stronger the tire is and the more air pressure the tire can safely hold. Higher ply tires require more air pressure to maintain proper wear.
The load index indicates the maximum amount of weight a tire can safely carry. Load index ranges from 0 to 279 and corresponds with the load-carrying capacity of a tire. Passenger car tire load indices typically range from 75 to 105. It is very important to maintain the proper load index for your vehicle when replacing your tires. See our load index chart for more information.
A tire receives its speed rating from the U.S. Government by meeting minimum standards for reaching and sustaining a specified speed. In general, a higher speed rating will result in better vehicle handling.
See our speed rating page for more information and a list of the various speed ratings.
The "DOT" marking indicates that the tire meets or exceeds the U.S. Department of Transportation's safety standard for tires.
The first two letters following the DOT marking are codes to identify the manufacturer of the tire and the manufacturing plant.
The third and fourth characters following the DOT marking are codes representing the tire size.
The final three or four letters are codes representing other significant characteristics of the tire as determined by the manufacturer.
The first pair of digits identifies the week the tire was manufactured. In this case, the tire was manufactured in the 11th week. The number 01 would indicate the first week of January, whereas the number 52 would indicate the last week of December.
The second pair of digits identifies the year that the tire was manufactured, in this case 2005.
The treadwear rating is a measurement of the tire's durability, but not the projected tread life. It is important to remember that road surfaces, driving habits, and other factors determine actual tread life. Each tire manufacturer independently determines treadwear through their own tests. Treadwear is not based on any one industry or government standard.
The traction rating is a measurement of a tire's ability to stop on a straight, wet surface under controlled conditions. It does not indicate the tire's cornering ability on a wet surface or its traction on ice or snow. Traction grades include AA, A, B, and C, with AA being the highest grade available.
The temperature rating is a measurement of a tire's resistance to heat generation under normal operating conditions at recommended inflation pressures.
Temperature grades range from A to C, with A being highest rated and therefore most resistant to heat generation.
This indicates the tire's maximum load-carrying capabilities when the tire is inflated to its maximum inflation pressure, as indicated on the sidewall. Max load is based on standards set by the National Highway Traffic Safety Administration (NHTSA)
This indicates the maximum operating inflation pressure of the tire. It does not indicate the manufacturer's recommended inflation pressure, nor does it indicate the proper air pressure based on the vehicle the tire is mounted on. This category is also based on NHTSA standards.
Note - Some tires are marked 'Extra Load', 'XL', or 'RF' (for reinforced). This simply denotes that the tire's indicated maximum load and air pressure are higher than a standard load tire.
This indicates what materials are used in the tire's plies, and the quantity of each type included.
Some tires indicate the direction of rotation on the sidewall, while others indicate a specific side of the tire that is intended to face outward from the vehicle. Another type of tire combines both indications. It is important that these tires be mounted according to the indicated instructions.
Directional tires feature arrows on the sidewall that indicate what direction the tire should rotate when the vehicle is moving forward.
Asymmetrical tires have the word "outside" labeled on the side of the tire that should face outward from the vehicle.
Tires that are both directional and asymmetrical will indicate what direction the tire must rotate, as well as what side must face outward from the vehicle.
At one time, you could gauge a tire’s construction and load-carrying capabilities by the number of plies or layers used to make the tire.
The days of counting the number of plies may be gone, but the idea lives on in the Tire Ply Rating. Here’s what those ratings mean and how to get the right tires for your needs.
In the early and mid part of the 20th century, cotton fibers were used in tires to add strength. Those fibers ran at a specific angle to the tread to make bias-ply and radial tires. Steel wires would eventually replace the cotton. However, the number of plies (or layers) in a tire was still counted and used to determine its load-carrying capacity when fully inflated.
Fast forward to today, and tire plies are manufactured with rubberized textile cords wrapped under the beads of the tire. This design makes it possible to use fewer plies and layers to achieve equal or greater strength. That’s why we use the term Ply Rating. This information can also be indicated as Load Range.
You’ll find the information about a tire’s Ply Rating on the tire’s sidewall.
You’re looking for the Construction Type or Load Range (D in the image below).
While Load Range and Ply are used interchangeably, you’ll need the chart in our article Using Load Index and Load Range to Pick the Right Tires to pinpoint the ply rating that corresponds to a Load Range of A – F.
| LOAD RANGE | PLY RATING |
|---|---|
| A | 2 |
| B | 4 |
| C | 6 |
| D | 8 |
| E | 10 |
| F | 12 |
When referring to the first chart in the article, you’ll notice the Load Index..jpg)
This number correlates to the maximum safe carrying capacity of the tire when it’s inflated to its maximum pressure. Higher load index ratings mean your tires may be able to handle a heavier load.
If you don’t see a Load Range or Ply Rating, you might find the letters P (passenger rated, which is 4-ply rated or lower), LT (light truck, which is 6-ply rated or higher), or XL (extra load is typically 4-ply rated with a higher-than-standard Load Index) stamped on the tires.
If you drive a cargo van (such as a Ford Transit), you may see the letter C, which on these particular tires stands for “cargo” at the end of your tire size. This is not to be confused with a 6-ply rated tire. Refer to the Load Index for your vehicle to ensure you get the proper tires. If you’re not sure, stop by Les Schwab.
You can always leave the Tire Ply Ratings, Load Indexes and Load Ranges to the pros at Les Schwab.
We’ll show you the best tires for your vehicle and needs. Schedule an appointment that works for you or stop by your local Les Schwab and we’ll help you out.
Find Your Store
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 catalog
195/65 R15 91 TXL
nine0002 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 simply called “profile”.
Since the tire profile is a relative value, it is important to take into account 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. nine0003
If this ratio is not specified (for example, 185/R14C), 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- means 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. nine0003
15 - wheel (rim) diameter 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. nine0003
T - tire speed index. The larger it is, the faster you can ride 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.
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.
Example: 31x10.5 R15 (corresponding to European size 265/75 R15)
31 is the outside diameter of the tire in inches.
10.5 is tire width in inches.
R - a tire with a radial design (older tire models 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. nine0003
XL or Extra Load is a 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).
All Season or AS all season tires. Aw (Any Weather) - Any weather. nine0003
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. nine0003
RSC (RunFlat System Component) - RunFlat tires are tires on which you can continue to drive a car at a speed of no more than 80 km / h with a FULL drop in pressure 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 tire sidewall 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. nine0003
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 construction tire. 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.
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Temperature A, B, or C Temperature resistance of the tire at high speeds on the test bench (A is best).
Traction A, B, or C Tire wet braking capability.
Treadwear ; relative expected mileage compared to a specific US standard test.
TWI (Tread Wear Indiration) - 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). nine0003
DOT - Manufacturer's coded address, tire size code, certificate, issue date (week/year).
Find tires / tire catalogFor those who are used to deciding on their own the issue of competent selection of tires for their car, we have prepared useful information in this section:
design differences tires.
Types of tire marking and interpretation of its meanings. nine0003
Types of car tire designs.
Rubber and cord are, of course, the main ones in the production of car tires. Rubber made from natural and/or synthetic rubber is reinforced with cord fabric, which. In turn, it can be made of metal, textile or polymer threads.
The figure shows the classic structure of a car tire:
1 - tread
2 - shoulder
3 - carcass
4 - side part (tire fender)
5 - breaker and cushion layer
6 - additional insert in the shoulder area.
7 - side ring
8 - side part
According to the method of sealing the wheel, tires are divided into chamber and tubeless:
Tube tires consist of several elements: tires, chambers with a valve, with which air enters the tire and blocks its exit to the outside, and a rim tape that is put on the rim to prevent the tube from rubbing against the wheel and tire edge.
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Tubeless tires differ from tube tires in the presence of a sealing rubber layer, which is applied to the first layer of the carcass. The camera is missing. The state of tightness in them is achieved due to the tight fit of the tire on the rim. The tire inflation valve is located in the wheel rim hole, which reduces tire weight, improves safety in case of a tire puncture, improves heat transfer, and also simplifies tire repair.
Most modern car tires are tubeless. nine0003
Depending on the location of the cord threads in relation to the radius of the wheel, tires are divided into radial and diagonal.
Bias tire carcass is a set of rubberized cord spacers, the edges of which are wrapped around wire ring rods (they are what allow the tire to “plant” on the rim). The carcass and breaker cords are crossed in adjacent layers (the number of adjacent layers is usually four) at an angle of 45° - 60°.
Today, this type of tire design is obsolete. As a rule, such tires are used on old cars, while in view of the still considerable fleet and demand for them, as well as the low cost of production, tires with a diagonal cord arrangement continue to be produced.
It is worth noting the high maintainability of such tires, as well as resistance to destruction from impacts and cuts. nine0003
The carcass of a radial tire is a structure with a parallel arrangement of the tire cords (along the radius from one bead to the other, and the breaker cords at an angle of more than 65°). In order for the tire to withstand heavy loads at high speeds and sharp turns, it has a steel cord belt in which two layers are wound alternately at a sharp angle. An additional nylon band is used on certain models to further stabilize the behavior of the tire. nine0003
Today, tires with a radial arrangement of cords are most in demand due to improved characteristics: structural rigidity, stability of the tire contact patch with the roadway, reduced rolling resistance and, as a result, lower fuel consumption. At the same time, tires with a radial design have a lower weight and carcass thickness, heat up less, give off heat faster, which can significantly extend their service life.
According to the purpose, tires are divided into the following groups:
tires for passenger cars;
tires for light trucks and SUVs.
tires for trucks;
tires for construction, agriculture and special purpose of technology.
tires for motorcycles and mopeds.
In the production of passenger and light truck tires, a cord made of textile or polymer threads is used.
Metal cord used in the production of truck tires. nine0003
TIRE MARKING.
On November 1, 2012, a law on mandatory tire labeling was passed in Europe. Tires for passenger cars, commercial vehicles and trucks produced in the European Union have a standardized marking. It should be taken into account that the law does not provide for mandatory marking of retreaded tires, off-road tires, tires for cars registered before October 1, 1990, as well as for spare tires and stowaways, tires with a speed index below 80 km / h, studded tires, tires for racing cars. nine0003
In summary, according to the European label, tires must be judged on three main criteria: fuel efficiency, wet grip, and external rolling noise.
Fuel Efficiency (Rolling Resistance)
The fuel efficiency of the is an important criterion to consider when choosing a tire. The argument here is quite weighty - about twenty percent of a car's fuel consumption depends on the tires used! The higher the rolling resistance rating of a tire, the higher your vehicle's fuel consumption will be. The level of tire rolling resistance is indicated in Latin letters in the range from A to G. Accordingly, the mark A on the tire indicates low rolling resistance, and therefore the lowest fuel consumption. The G mark indicates the highest level of tire rolling resistance, of course, fuel consumption will be maximum. nine0003
What determines the rolling resistance index? A number of determining factors come into play here:
the design of the tire itself.
tire pressure level.
tire temperature and load.
vehicle speed.
the condition of the suspension of the car and the roadway.
Wet grip .
This criterion evaluates the stopping distance of a vehicle on a wet road surface. Tires are marked with Latin letters in the range from A to F. The difference in the braking distance of a car equipped with category A tires and category F tires will be about eighteen meters (according to measurements made on a car moving at a speed of 80 km / h before braking). nine0003
External tire rolling noise.
This indicator indicates the noise level that occurs when a tire is rolling and is measured in decibels. The quietest tires do not exceed 60 dB. Tires over 74 dB will be very noisy.
METRIC AND TIRE LABELING.
Winter - tires designed for operation in winter weather conditions.
Aqua, Rain or Water (may be designated with an umbrella icon) - Tires designed for use in rain or wet conditions.
Minimize the effect of aquaplaning, especially at high speeds. nine0003
M + S (Mud + Snow, which means mud + snow) - off-road tires for driving in mud or snow.
M/T (Mud Terrain) - mud terrains.
A/T (All Terrain) - tires for any type of terrain.
AS (All Season), Any Season, R+W (Road + Winter) - designations for all-season tires.
Rotation - Tires with directional tread patterns have an arrow on the sidewall of the tire indicating the desired direction of tire rotation.
Outside and Inside (or Side Facing Out and Side Facing Inwards) are asymmetric tires, which must be installed strictly following the tire-on-rim rule. The inscription Outside (outer side) should be on the outside of the car, and Inside (inner side) - on the inside. nine0003
Left or Right - means that the tires of this model are left and right. When installing them, you must strictly follow the rule of installing a tire on a car, the left ones only on the left, and the right ones, respectively, only on the right.
Steel Radial - a radial tire with a steel cord.
Tubeless (TL) - tubeless tire.
Tube Type (TT) - the tire is installed with the camera.
Treadwear 380 - wear coefficient, determined in relation to the "base tire", for which it is equal to 100. The wear index is a theoretical value and cannot be directly related to the practical life of the tire, which is significantly influenced by road conditions, driving style, following pressure recommendations, adjusting vehicle camber angles and wheel rotation. The wear indicator is presented as a number from 60 to 620 with an interval of 20 units. The higher its value, the longer the protector withstands when tested according to the established method. nine0003
Traction A - friction coefficient, has the values A, B, C. Coefficient A has the highest friction value in its class.
Max Load - the maximum load and further there are values in kilograms and pounds.
PR (Ply Rating) - the strength (load-bearing capacity) of the carcass is conditionally estimated by the so-called ply rate.
The stronger the carcass, the more air pressure the tire can withstand, and therefore has a greater load capacity. For passenger cars, tires with a ply rating of 4PR and sometimes 6PR are used, and in this case the latter have the inscription "Reinforced", that is, "reinforced" (tires with increased load capacity). nine0003
Extra Load (XL) - increased load index.
Reinforced (Reinf or RF) - increased load index. On light trucks and minibuses, tires with 6PR and 8PR are most commonly used. The increased ply (that is, strength) of the tire may be indicated by the letter “C” (commercial), which is placed after the designation of the landing diameter (for example, 185R14C).
TWI - the mark is located on the sidewall of the tire and shows the location of the remaining tread height marks in the main grooves. For the countries of the European Union and the Russian Federation, the remaining tread depth of a worn passenger tire must be at least 1.6 mm. nine0003
ZP (Zéro Pression) - zero pressure, Michelin's commercial designation for tires with reinforced sidewalls.
ZP: Ability to continue driving in the event of a puncture up to 80 km at speeds up to 80 km/h. ZP SR: Ability to continue driving in the event of a puncture up to 30 km at speeds up to 80 km/h.
SST(Self Supporting Tires) - self-supporting tire. Such tires can carry the load and continue to move after a puncture.
Dunlop MFS (Maximum Flange Shield) - Maximum bead protection system protects expensive wheels from curbs and pavement damage - a rubber profile around the tire circumference, located on the bottom of the wall above the rim flange, forms a buffer zone. nine0003
Studless - the tire cannot be fitted with studs.
Studdable - Tire can be fitted with studs. In addition, the tires are marked with quality standards
E (circled) - European quality standard.
DOT - American Quality Standard.
SPEED INDEX.
As a result of tests carried out by the manufacturer on a specially equipped stand, each tire is assigned a certain speed category.
The marking on the tire indicates the maximum speed that the tire of this model can withstand. When choosing tires, this factor should be taken into account, since your car should drive at a speed of 10-15% less than the maximum allowable. nine0003
Marking "ZR" - indicates that the tires are designed for operation at speeds exceeding 240 km/h.
The “V” marking on a tire, together with the load index (example: 91V), means that the tires are designed for use at speeds up to 240 km/h, while the load index is indicated for a speed of 210 km/h. The load must be reduced by three percent in proportion to the increase in speed by 10 km/h.
The "W" marking on the tires, together with the load index (example: 100W), indicates that the tire is designed for use at speeds up to 270 km/h, while the load index is indicated for a speed of 240 km/h. The load must be reduced by five percent in proportion to the increase in speed by 10 km/h. nine0003
The "Y" marking on a tire with a load rating (example: 95Y) indicates that the tires are designed for speeds up to 300 km/h, while the load rating is for 270 km/h.
The load must be reduced by five percent in proportion to the increase in speed by 10 km/h.
LOAD INDEX.
| Load index | Permissible load, kg | Load index | Permissible load, kg |
|---|---|---|---|
| 0 | 45 | 100 | 800 |
| 1 | 46.2 | 101 | 825 | nine0363
| 2 | 47.5 | 102 | 850 |
| 3 | 48.7 | 103 | 875 |
| 4 | 50 | 104 | nine0365 |
| 5 | 51.5 | 105 | 925 |
| 6 | 53 | 106 | 950 |
| 7 | 54. | nine0365 975 | |
| 8 | 56 | 108 | 1000 |
| 9 | 58 | 109 | 1030 |
| 10 | nine0365 110 | 1060 | |
| 11 | 61.5 | 111 | 1090 |
| 12 | 63 | 112 | 1120 |
| 13 | 65 | 113 | 1150 |
| 14 | 67 | 114 | 1180 |
| 15 | 69 | 115 | nine0365 |
| 16 | 71 | 116 | 1250 |
| 17 | 73 | 117 | 1285 |
| 18 | 75 | nine0365 1320 | |
| 19 | 77. | 119 | 1360 |
| 20 | 80 | 120 | 1400 |
| 21 nine0368 | 82.5 | 121 | 1450 |
| 22 | 85 | 122 | 1500 |
| 23 | 87.5 | 123 | 1550 nine0368 |
| 24 | 90 | 124 | 1600 |
| 25 | 92.5 | 125 | 1650 |
| 26 | 95 | 126 nine0368 | 1700 |
| 27 | 97 | 127 | 1750 |
| 28 | 100 | 128 | 1800 |
| 29 | 103 nine0368 | 129 | 1850 |
| 30 | 106 | 130 | 1900 |
| 31 | 109 | 131 | 1950 |
| 32 | 112 | 132 | 2000 |
| 33 | 115 | 133 | 2060 |
| 34 | 118 | 134 | 2120 nine0368 |
| 35 | 121 | 135 | 2180 |
| 36 | 125 | 136 | 2240 |
| 37 | 128 | 137 nine0368 | 2300 |
| 38 | 132 | 138 | 2360 |
| 39 | 136 | 139 | 2430 |
| 40 | 140 | 140 | 2500 |
| 41 | 145 | 141 | 2575 |
| 42 | 150 | 142 | 2650 |
| nine0002 43 | 155 | 143 | 2725 |
| 44 | 160 | 144 | 2800 |
| 45 | 165 | 145 | 2900 |
| 46 | 170 | 146 | 3000 |
| 47 | 175 | 147 | 3075 |
| 48 | 180 | nine0002 148 | 3150 |
| 49 | 185 | 149 | 3250 |
| 50 | 190 | 150 | 3350 |
| 51 | nine0365 151 | 3450 | |
| 52 | 200 | 152 | 3550 |
| 53 | 206 | 153 | 3650 |
| 54 | 212 | 154 | 3750 |
| 55 | 218 | 155 | 3875 |
| 56 | 224 | 156 | nine0365 |
| 57 | 230 | 157 | 4125 |
| 58 | 236 | 158 | 4250 |
| 59 | 243 nine0368 | 159 | 4375 |
| 60 | 250 | 160 | 4500 |
| 61 | 257 | 161 | 4625 |
| 62 | 265 | 162 | 4750 |
| 63 | 272 | 163 | 4875 |
| 64 | 280 | 164 | 5000 nine0368 |
| 65 | 290 | 165 | 5150 |
| 66 | 300 | 166 | 5300 |
| 67 | 307 | 167 nine0368 | 5450 |
| 68 | 315 | 168 | 5600 |
| 69 | 325 | 169 | 5800 |
| 70 | 335 | 170 | 6000 |
| 71 | 345 | 171 | 6150 |
| 72 | 355 | 172 | 6300 |
| nine0002 73 | 365 | 173 | 6500 |
| 74 | 375 | 174 | 6700 |
| 75 | 387 | 175 | 6900 |
| 76 | 400 | 176 | 7100 |
| 77 | 412 | 177 | 7300 |
| 78 | 425 | nine0002 178 | 7500 |
| 79 | 437 | 179 | 7750 |
| 80 | 450 | 180 | 8000 |
| 81 | nine0365 181 | 8250 | |
| 82 | 475 | 182 | 8500 |
| 83 | 487 | 183 | 8750 |
| 84 | 500 | 184 | 9000 |
| 85 | 515 | 185 | 9250 |
| 86 | 530 | 186 | nine0365 |
| 87 | 545 | 187 | 9750 |
| 88 | 560 | 188 | 10000 |
| 89 | 580 nine0368 | 189 | 10300 |
| 90 | 600 | 190 | 10600 |
| 91 | 615 | 191 | 10900 |
| 92 | 630 | 192 | 11200 |
| 93 | 650 | 193 | 11500 |
| 94 | 670 | 194 | 11800 |
| 95 | 690 | 195 | 12150 |
| 96 | 710 | 196 | 12500 |
| 97 | 730 | nine0002 197 | 12850 |
| 98 | 750 | 198 | 13200 |
| 99 | 775 | 199 | 13600 |
More information.
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Tires must be marked as follows:
MAX PRESSURE - the maximum allowable tire pressure. For each type of tire, there are air pressure standards that must be observed. Violation of these requirements can lead to both increased or uneven wear of the tread, and a violation of the integrity of the tire, which is dangerous especially at high speeds. By the way, before adjusting the wheel alignment of the car - do not forget to bring the tire pressure back to normal! nine0003
What are the colored dots or circles on the tire for?
The red dot indicates the hardest point on the tire. If your rims are marked with a white dot, it is recommended to combine these two dots during tire fitting.
The yellow dot indicates the lightest spot on the tyre.
To a greater extent, both markings are needed for tire service employees, because this information will tell a competent specialist how to reduce the mass and number of balancing weights.
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Tire construction materials - Tires may also bear the names of the materials that make up the tire carcass and breaker.
Here is an example of tire marking and its interpretation:
Metric marking system.
Example: TIRE LT205/55R16 91V
for trailers/semi-trailers and vans (these tires are not used for cars/trucks/SUVs; T - temporary use tire (for spare wheel)
205 - profile width in mm
55 - ratio of tire profile height to tire width.
R - the type of tire carcass has a radial structure (the absence of a default marking indicates that the tire is a diagonal type).
D (or not specified) - diagonal tire carcass type.
B - Bias Belt. The structure of the tire carcass is diagonal with the use of a breaker, characteristic of radial tires.
16 — tire diameter in inches (corresponds to the diameter of the rim). nine0003
91 - maximum load index. Marking is also used indicating the load in kg or pounds (max load).
V - tire speed index (see the value in the table).
The following marking options are also possible:
The location of the speed index designation is allowed in different places: 225/50SR16, 225/50SR16 89S, 225/50R16 89S
Marking with the letter C after the diameter indicates that the tire is intended for commercial vehicles , as well as off-road trucks and pickups (example: 195/70R15C 104/102R).
If the manufacturer, after indicating the tire size, placed the letters XL, RF, SL, LL (example: P235 / 75R-15 XL, P285 / 35R-19 LL), this means that the tire has XL, RF - increased, SL - standard, LL - reduced bearing capacity. American P-marking XL corresponds to the maximum allowable pressure of 41 psi (280 kPa), SL and LL - 35 psi (240 kPa), in the European marking XL / RF corresponds to 42 psi (290 kPa), SL - 36 psi (250 kPa), LL is missing. The absence of this designation corresponds to the SL variant. nine0003
The presence of the letters FR (example: 215/45 R17 87V FR) after the specified size means that the tire has a protective portico on the sidewall that protects the rim and the rubber itself from damage.
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