Please help me take a look at the following two sets of tire specifications, how do you see them? Th

Hello! 10 is the tire cross-sectional width in inches;

00 is the tire aspect ratio, which here means 100%;

r stands for radial tires;

20 indicates the inner diameter of the tire, or the outer diameter of the steel rim, in inches;

18 indicates the level of the tire, and 18 levels are similar to the load index, the accurate load capacity, you can view the load index.

295 is the tire cross-sectional width in millimeters;

80 is the tire aspect ratio, which here means 80%;

Indicates the inside diameter of the tire, or the outer diameter of the steel rim, in inches.

The two tire types are different, the former is tubeless and the latter is tubeless. If it involves the conversion of tire specifications and replacing it with tubeless tires, the tubeless tires should be chosen, of course, the relevant design parameters of the vehicle, policies and regulations and other factors should be considered.

It represents the outer diameter of the tire, R represents the rayon tire, 20 represents the inner diameter of the tire, and 18 represents the layer of rayon.

295 represents the tire tread width, 80 represents the difference between the inner and outer diameters of the tire, represents the maximum inner diameter of the tire, and 18 represents the diameter of the steel rim.

Let's take a look at the following diagram first: for example, 195 55 r15 85 v.

95 – means the tire width is 195 mm.

55 - refers to the flattening rate of the tire, that is, the cross-sectional height is 55% of the width.

The flattening rate is the percentage of the height of the tire profile to the maximum width of its outer cross-section (crown). To put it simply, it is the width ratio of the long trembling shirt of the tire.

For example, a tire with a specification of 205 60R15 means that its maximum cross-sectional width is 205mm, the flatness rate is 60%, and the inner diameter is 15 inches.

The flatness rate is 60%, that is, the tire profile height is 205 * 60% = 123mm.

R refers to radial tires (the inner layer of this wheel is the radial tire).

5 – means that the rim diameter is 15 inches.

85 - load index 85 represents the maximum load capacity of 515 kg, four tires 515 4 = 2060 kg. Specifically, you can see how much bearing mass the load value represents.

v - refers to the speed level of 240 km h.

R stands for radial tires, "R" stands for radial tires, and "D" and "One" represent bias tires. Cars on the market generally use radial tires, and tubeless radial tires have been realized, which are commonly known as "atomic tires".

This type of tire does not accumulate heat easily at high speeds. When a tire is punctured by a nail or sharp object, it leaks slowly and can continue to travel a certain distance. In addition, atomic tires have the advantages of simplifying the production process, reducing weight and saving raw materials. Swift sedan car.

Date of manufacture, certification mark, etc. tires.

Look at the tire specification parameters to know the meaning of the tire specification, the flat ratio, the tire type code, the load index, and the tire specification level.

1. The meaning of tire specification is indicated.

The international standard tire specification is generally composed of six parts, "tire width (mm) + flat ratio of tire section (%) tire type code + rim diameter (inches) + load index + allowable speed code". Tire width, rim diameter and mould flatness are shown in the figure above, where the flattening ratio is the percentage of tire thickness and tire width. Tire width is a factor that affects the fuel consumption performance of the whole vehicle.

The wider the tire, the larger the contact area with the ground, which correspondingly increases the friction between the tire and the ground, and the kinetic energy of the vehicle is converted into frictional heat energy and the energy lost will increase. However, there are two sides to everything, although the fuel consumption is increased, the wide tyres have more grip and thus better body stability.

2. Flat ratio.

The aspect ratio is the main factor affecting the responsiveness of the vehicle to the road surface. The lower the aspect ratio, the thinner the sidewall and the greater the pressure on the tire, which is very responsive to the road surface, so that it can quickly transmit the road signal to the driver, which is more convenient to control.

The higher the aspect ratio, the thicker the tire wall, although it has ample cushioning thickness, but the feeling of the road surface is poor, especially when cornering, it will be relatively more procrastinating, but it is mostly seen in some cars that are good at comfort. In addition, the flat ratio of off-road vehicles is generally higher, mainly to adapt to the harsh road conditions.

3. Tire type code.

Tire type code, common means "X" high-pressure tires, "R", "Z" radial tires, "one" low-pressure tires. Cars on the market generally use radial tires, and radial tires have been realized tubeless, commonly known as "atomic tires". These tires are less prone to heat build-up at high speeds, and when the tires are punctured by nails or sharp objects, they leak slowly and can continue to drive for some distance.

In addition, atomic tires also have the advantages of simplifying the production process, reducing weight, and saving raw materials.

4. Load index.

The load index is the maximum load that a tire can bear in the form of a code, to characterize the ability of the tire to bear the load, the larger the value, the greater the load that the tire can bear.

The allowable speed indicates the limit of the vehicle's speed, exceeding which may cause a puncture, and the higher the speed level, the higher the tire design and material requirements.

5. Tire specification level.

The level refers to the nominal number of ply layers in the tire rubber layer, which is not completely consistent with the actual ply layer, and is an important indicator of tire strength. Levels are marked in Chinese, such as level 12; Use English signs, such as "i.e. 14 levels."

The correct use of tires is the first to know the tires, and the first thing to know about the tires is to know how to read the marks on the tires.

Hello, the tire specifications we can see from the side text of the tire. At present, almost all passenger car tires are radial tires, according to the identification method of radial passenger car tire specifications, according to the "tire width, flat ratio, adapted hub diameter, load index, speed level" sorting and labeling.

For example: 205 60R16-92V, the specific meaning is: the tire is 205 mm in nominal width, 60% aspect ratio, 16 inches in diameter of the adapted wheel, 92 (630 kg) load index, and 240 km/h speed class V.

If you encounter some tire suffix XL characters, it means "load enhancement tire". For example, the 205 60R16-96H-XL has the same dimensions as the above tires, but with a load index of 96 (710 kg) and a speed class H (210 km/h).

Hello! The model number is written on the side of the tire, and usually the identification of the tire specification of the car is *** ** r** and the part is a number. (Example: Goodyear Tires' 255 55 R18 109Y).

"255" refers to the width of the tire section, which is the width (in millimeters) between the two sidewalls. This width varies depending on the width of the rim that the tire matches: wide rims with wide tires, and narrow rims with narrow tires.

Generally, the width of the tire indicated on the sidewall refers to the width of the tire when it is fitted to the rim of the recommended width.

55" is the flat ratio of the tire, is the ratio of the tire width to the tire height, here refers to the tire height accounts for 55% of the tire width, the smaller the value, the flatter it is.

"r" refers to the structure of the tire, which means that the tire is a radial structure, that is, its ply layer is arranged in the carcass in the form of an auxiliary shot.

18" indicates the rim diameter in inches.

109" indicates the load index, and different load indices represent different maximum loads (usually in pounds or kilograms).

y" indicates the speed level, and different English letters indicate different speed levels.

Tires are an important part of the car, and only by fully understanding tires can we not be confused in use.

The style of the tire specification such as 185 60 R15 88H185 indicates the cross-sectional width of the tire.

60 indicates the aspect ratio.

r stands for radial tires.

15 indicates the diameter of the mated rim.

88 indicates the load class.

h indicates the speed class maximum speed.

If you need tires, you can send me a private message!

Tires are classified according to the type of vehicle, and can be divided into about 8 types. Namely: PC - car tires; LT - light truck tires; TB - truck and bus tires; ag - agricultural vehicle tires; OTR - engineering vehicle tires; ID - Industrial vehicle tires; AC – aircraft tires; MC – Motorcycle tires.

Tire specifications are often expressed by a set of numbers, the former number indicates the tire section width, and the latter indicates the rim diameter, measured in inches.

For example, 165 70R14 means radial tires with a tire width of 165 mm, a flatness rate of 70, and a rim diameter of 14 inches. Some tires also contain other letters or symbols, which have special meanings: "X" means high-pressure tires; "C" indicates strengthened; "b"indicates a bias tire; "One" means low-pressure tires.

M and S are abbreviations for Mud and Snow respectively, which indicate that this tire is suitable for use on ice, snow and muddy roads.

The numerical meaning of the size of the tire indicates the model of the tire. The tire model refers to the international standard tire code, which is generally located on the side of the tire, including the width of the tire cross-section, in mm; Including the cross-sectional width and the percentage of the flattening ratio (flattening rate), the unit is mm; Includes tire hub diameter in inches; Load index included; These are the meaning of the tire specification numbers.

Such as 185 60 R14 91V, this is a tire specification, in which the number meaning is:

185 indicates the cross-sectional width of the tire 185mm

The wider the tire, the greater the natural contact area with the ground. Then when the car is driving, it will definitely increase the friction between the carcass and the ground, which is very unfriendly to the fuel consumption and blind volume of the car. Of course, there are two sides to everything, because of the increased friction, not only does it have a stronger wet grip, but also the drainage of the tires also helps, thus increasing driving safety in rainy days.

60 represents the flattening rate of the tire.

The flattening rate is the cross-sectional height of the tire divided by the width of the tire as a percentage, the higher the value, the thicker the tire, the lower the maneuverability, but the increased comfort. In general, ordinary cars should not use tires with an aspect ratio greater than 75%, while luxury cars and high-performance sports cars recommend tires with an aspect ratio of less than 60%.

14 represents a straight rim with a silver diameter of 14 inches.

91 corresponds to a maximum load of 615 kg per tire (refer to the load index comparison table to call Qin vacant).

In the tire specifications, we can see that there are two letters in addition to the number, where R represents the tire type, radial tires; And h stands for the speed class of the tire. The speed class indicates the maximum speed at which the tire can bear the specified load under the specified conditions, and V represents the maximum speed under the specified load of 240km h (refer to the speed level comparison table).

Tire specifications, model dimensions, in millimeters to express the percentage of section width and aspect ratio. After adding: tire type code, rim diameter (inches), load index (allowable load quality code), allowable speed code.

Let's say the size of the tire is 195 55 R16 85V

195 – refers to a tire width of 195 mm.

55 - refers to the tire flat ratio, that is, the section height is 55% of the width.

r - refers to the tire is a radial tire (the inner layer of this tire is a radial tire manufacturing method).

15 – means that the rim diameter is 15 inches.

85 - load index 85 represents the maximum load capacity of 515 kg, four tires are 515 4 = 2060 kg.

v – refers to a speed level of 240 km/h.

Tire Safety Speed Gauge[**-Safety speed limit km h].

L-120, M-130, N-140, and P-150, Q-160, R-170

s-180】【t-190】【u-200】【h-210】【v-240】【zr-240】

Tire load index[**-Load kg].

Refers to the percentage of the height of the tire section to the maximum width of its section.

The flattening ratio is the percentage of the height of the silver face of the head of the longitudinal fracture of the tire and the maximum width of its outer cross section (crown). Simply put, it's the aspect ratio of the tire.

For example, a tire with a size of 205 60R15 means that its maximum cross-section width is 205 mm, the aspect ratio is 60%, and the inner diameter is 15 inches.

The flat ratio is 60%, that is, the tire longitudinal section height is 205*60%=123mm.