What does 225 60 R17 tires mean

The 225 60 R17 indicates the size of the tire.

225 refers to the cross-sectional width (mm).

60 means that the aspect ratio is 60%.

r refers to the meridian structure.

17 refers to the inner diameter of the tire.

Tread Width: 225mm, Aspect Ratio: 60, R: Radial Structure, Steel Rim Diameter: 17 inches.

Tire structure: "R" means radial tire, "D" and "a" mean bias tire.

Compared with ordinary slash tires, radial tires have large elasticity, good wear resistance, low rolling resistance, good adhesion performance, good cushioning performance, large bearing capacity, and are not easy to puncture; The disadvantage is that the sidewall is easy to crack, due to the large lateral deformation, resulting in slightly poor lateral stability of the car, high manufacturing technology requirements, and high cost.

225 60 R17 where 225 represents the tire section width (mm), 60 represents the flat ratio = (outer diameter - inner diameter) Tire section width * 100% That is, the section height is 60% of the width, R represents the radial structure, 17 represents the tire inner diameter (inch), that is, the rim diameter is 17 inches. The tire code of the international standard, which indicates the percentage of cross-sectional width and flattening ratio in millimeters. Add :

Tire type code, rim diameter (inches), load index (allowable load weight code), allowable speed code.

The wheels of sedans generally use radial tires. The specifications of radial tires include width, aspect ratio, inner diameter and speed limit symbol. The tire specification is 225 60 R17, which means that the width between the two sides of the tire is 225 mm, 60 means the aspect ratio, and "R" stands for the word radial, which means that it is a radial tire.

17 is the inside diameter of the tire, measured in inches. Some tires are also marked with speed limit symbols, which are represented by letters P, R, S, T, H, V, Z and other letters.

225 -- Tire section width (mm).

60 -- flat ratio = (outer diameter - inner diameter) tire section width * 100%.

r -- meridian structure.

17 -- Tire inner diameter (inch).

Most of the tire model marks are like: 215 70R15, the meaning of these numbers is: 215 represents the width of the tire section, the unit is mm, the width of the general tire is between 145 and 285mm, and the interval is 10mm.

70 is the flat ratio, that is, the ratio of tire sidewall height and tire section width, 70 represents 70%, the flat ratio of general tires is between 30% and 80%, under normal circumstances, ordinary cars should not use flat ratio "75% of tires, luxury cars and high-performance sports cars are recommended to use flat ratio < 60% tires.

R is the abbreviation of English radial, which means that the tire is a radiant layer structure, and 15 is the outer diameter of the rim in inches. If there is a tire mark shape: 6 00-12, which indicates that it is not a radial tire, but a bias tire, this kind of tire has been rare in cars, because of its safety, load capacity and poor high-speed stability, so it is only applied in some low-grade off-road vehicles and heavy trucks.

225 represents the cross-sectional width of the tire, and 225 represents the cross-sectional width of the tire 225 mm. 60 represents the flat ratio of the tire, which is the percentage of the sectional height of the tire divided by the width of the tire. R stands for radial tires. 17 stands for a tire diameter of 17 inches.

It means "tires with a tire cross-sectional width of 225 mm, a flat ratio of 60, a radial structure, and a tire inner diameter of 17 inches." ”

225 60 R17 225 -- Tire section width (mm - flat ratio = (outer diameter - inner diameter) Tire section width * 100%, r - radial structure, 17 - tire inner diameter (inch).

The international standard tire code, in millimeters to express the percentage of cross-sectional height and flat ratio, followed by: tire type code, rim diameter (inches), load index (allowable load quality code), allowable speed code.

The letter or symbol in the middle has a special meaning: "X" means high-pressure tire; "R" and "Z" represent radial tires; "One" means low-pressure tires.

225 refers to the width of the tire section (mm); 60 refers to flat ratio = (outer diameter - inner diameter) tire section width * 100%; r refers to the meridian structure; 17 refers to the inside diameter of the tire (inch).

The international standard tire code indicates the percentage of cross-sectional height and aspect ratio in millimeters. General tire specifications can be described as: [Tire width mm] [Percentage of tire thickness to tire width] r [Rim diameter (inches)] Load factor] [Speed mark], for example:

275 80R 14 77H in 275 represents the tire width is 275mm, 80 means that the flat ratio of the tire section is 80%, that is, the section height is 70% of the width, and R represents the radial tire.

When buying tires, it is not good to import them from abroad, and some people especially like to emphasize the original import of tires. As everyone knows, the average car is used for two or three years before starting to change the tire, at this time the so-called original tire is actually outdated from the style and performance, the same style of car is likely to be equipped with different manufacturers of tires, who can be called authentic original import? Only the ** of tires will be a lot higher because of the four words of original imports.

Hello! The 225 60 R17 indicates the size of the tire.

225: Cross-sectional width (mm).

60: The aspect ratio is 60%.

r:r=radial tire structure.

17: Rim diameter is 17 inches.

Tire width 225mm

Flat ratio, aspect ratio 60

The diameter of the wheel hub is 17 inches.

Car tires 255 60

R17, where 255 indicates that the width of the tire is 255mm; 60 means that the percentage of the cross-sectional height and width of the tire is 60%, that is, the flat ratio of the tire; "R" is an abbreviation for radial, which means radial tires; 17 means that the diameter of the rim is 17 inches. It is usually followed by relevant parameters indicating the load index and the speed class.

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 flattening are shown in the figure above, where the flattening ratio is a percentage of tire thickness and tire width.

The width of the tire --- 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, wide tires have more grip and thus better body stability.

The flat ratio --- is the main factor affecting the responsiveness of the vehicle to the road surface. The lower the flat ratio, the thinner the sidewall, and the greater the pressure on the tire, which is very sensitive to the road surface, so that it can quickly transmit the road signal to the driver, which is more convenient to control, and is more common in some models that are good at performance handling. 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, and it is more common in some cars that are good at comfort.

Tire type code--- common means that there are "X" high-pressure tires, "R", "Z" radial tires, and "one" low-pressure tires. Cars on the market generally use radial 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.

The load index --- the maximum load that a tire can withstand, and characterizes the ability of a tire to withstand a load, with a higher value being the greater the load that the tire can bear.

The allowable speed --- indicates the limit of the vehicle's speed, beyond which the safety performance will be reduced, which may cause a puncture, and the higher the speed level, the higher the tire design and material requirements.

The meaning of the above parameters is particularly important in car design and tire modification.

The first number represents the cross-sectional width of the tire, the second number represents the flat ratio, that is, the ratio of the cross-sectional height to the cross-sectional width, the third is a letter, which indicates the tire structure, the next number refers to the rim diameter, and the last number is a letter, which represents the load factor and speed level respectively, and the 300kpa logo indicates the ultimate air pressure. The sidewall of the tyre will have four digits indicating the date the tyre was manufactured, with the first two representing the week and the last two representing the year. The use of tires should generally not exceed 3 years, and the mileage should not exceed 60,000 kilometers.

225 60R16 is the model specification of the tire, where the width of the 225 table tire is 225mm, 60 means that the flat ratio of the tire section is 60%, that is, the section height is 60% of the width, and R represents the tire is a radial tire, 16 means that the rim diameter of the tire is 16 inches.

In 1904, Matt created carbon black reinforcing rubber, which was used on a large scale to reinforce the tread rubber after the tire was used for cord, because before that, the canvas was damaged faster than the tread in the use of the tire, and the amount of carbon black in the rubber material increased rapidly, and the carbon black used in every 100 parts of raw rubber in the 30s was only about 20 parts.

At this time, carbon black is mainly used on the tread, and the carcass is not used, which has reached more than 50 copies. Before the tread was mixed with carbon black, the tires were worn out after only about 6,000 km, but after the carbon black was mixed with carbon black, the mileage of the tires was quickly significantly improved. A set of truck tires can travel about 100,000 km, and even up to 200,000 km on good roads.

Development origin: In 1895, with the advent of automobiles, pneumatic tires were widely developed, and the first samples of automobile tires appeared in France in 1895, which were single-tube tires made of plain canvas, although there was tread rubber but no tread.

In 1892, British's Burlemill invented cord and used it for production in 1910, an achievement that not only improved the quality of tires, expanded the variety of tires, but also made it possible to mold tires.

With the improvement of tire quality requirements, the quality of the cord has also been improved, the cotton cord is replaced by rayon, and at the end of the 50s, rayon is replaced by nylon and polyester cord with better strength and higher heat resistance, and the steel cord has a strong competitiveness with the development of radial tires.

Meaning of tire model 225 60R16:

225 stands for section width, which is simply understood as the width of the tire tread.

60 stands for flat ratio, which is simply understood as the height of the tire sidewall.

R stands for tire type code, and R is for radial tires.

16 represents the diameter of the wheel, which is the tire that is suitable for 16-inch wheels.

Tire specification 225 60R16 identification of the tire model specifications, where 225 tire width is 225mm, 60 means that the flat ratio of the tire section is 60%, that is, the section height is 60% of the width, and R represents the tire is a radial tire, 16 means that the tire is suitable for the rim diameter is 16 inches.

The wider the width of the tire, the larger the ground contact area, under the premise of the same pattern and the same material, the wider tire will have better grip and traction in a straight driving state, but the fuel consumption level will increase accordingly.

Tire Letter Meaning:

1. Tire width (mm): The wider the tire, the greater the contact area with the ground, which is correspondingly easier to consume fuel, but also has better grip, and then obtains better body stability.

2. The flat ratio of the tire section (%, the percentage of tire thickness and tire width): the flat ratio is the main factor affecting the response sensitivity of the vehicle to the road surface. Generally speaking, models that are good at handling performance tend to use tires with low flat ratios.

Models that excel at comfort and off-road models tend to use tires with a high flat ratio.

3. Tire type code: common means "X" high-pressure tires, "R", "Z" radial tires, "one" low-pressure tires and so on. Cars on the market generally use radial tires.

225 indicates the width of the tire; 60 indicates the flat ratio of the tire; 16 indicates the size of the tire.

The width of the tire refers to the part of the tire that is in contact with the ground, and the wider the width of the tire used in a car, the better the stability of the car will be in the process of driving the car.

The flat ratio refers to the ratio of the height from the rim to the tread and the maximum width measured by the section of the tire, the flat ratio of the tire is generally represented by percentages, and 60 refers to the flatness of 60%.

16 is the size of the tire, if the size of the car is larger, then the size of the tire used in the car may also be larger.

Precautions for replacing new tires.

1. After replacing the new tires and disassembling the tires, the balance needs to be measured. After the tire is mounted on the rim, it is usually impossible to completely distribute the weight evenly, use a balancing machine to test the balance of the tire rim in a moving situation, and use a balance weight at the unbalanced point to ensure that the tire can run smoothly and avoid shaking.

2. When replacing new tires, you need to replace the new valve. Because the valve is a rubber product, there will be aging problems after a long time. When you put on a new tire, you may not have any problems with the valve at that time, but during the life of the new tire, the valve may age prematurely, causing a safety hazard.

3. Pay attention to check the tire pressure frequently to avoid the pressure being too high or too low, which will have a bad impact on driving.