An article on how to determine wear car tires, and what affects it. At the end of the article - a video about defects in car tires.
The content of the article:
How to check tire wear? The answer to this question saved many drivers not only from getting into an accident, but also from having to pay a fine. The main thing is to put your knowledge into practice in time and change tires when the maximum allowable wear is reached.
When to change tires. Causes and effects of wear
The average life of a tire is 5 to 7 years. Most manufacturers define a service life of 10 years, but in reality, replacement is required for about 6 years of service.
Of course, a wheel can last 10 years if the tire is made of quality material, the car is used lightly and on a good road, and the owner carefully monitors the condition of the wheels and the car as a whole.
But in reality, keep the car in perfect condition it is quite difficult, and the times when people bought a car “to boast”, and not for business, have long sunk into oblivion. Today, the car owner exploits his iron friend to the maximum, and does not shake, as over the greatest treasure. And tires in the process of work receive a load (and not small) in the first place.
Factors Affecting Tire Wear
Road surface quality
The road has the greatest impact on the condition of the tires. Unfortunately, perfect asphalt pavement remains something of a fantasy, especially in smaller towns. Bumps in the road, pits and potholes do not have the best effect on the condition of the tread.
Intensity and features of operation
A worn tire is an indicator not only of the condition of the road, but also of the driver's skills. The tires of a reckless motorist will fail much earlier than those of a calm and experienced car owner.
Caring for wheels and the machine as a whole
Regular checks of the condition of the machine, attentiveness to the needs of the "iron friend" and regular diagnostics can significantly increase the service life of tires.
Rubber quality
Savings in quality can not only affect safety, but also require a rubber change much earlier than is normally required.
Suspension condition
Suspension system malfunctions do not affect the condition of the wheels in the best way.
Wheel imbalance and other causes
A worn out tread can cause a lot of trouble and jeopardize the safety of the driver and passengers of the vehicle, as well as the car owner's wallet.
Why worn tires are dangerous:
- The adhesion of the wheel to the road surface is reduced. This can lead to skidding when cornering and braking, especially on wet / icy surfaces.
- The vehicle's cross-country ability decreases in off-road conditions.
- The risk of tire damage increases. A leaky rubber puncture is only a matter of time.
- High risk of aquaplaning.
The maximum allowable abrasion rate of summer rubber is up to 1.6 mm over the entire tread surface. For winter - 4 mm. For trucks- 1 mm.
These indicators are the limit prescribed in the law, but from a safety standpoint, it is recommended to change the rubber earlier, when the level of abrasion is 1 - 3 mm less.
Tire wear index
Each manufacturer is obliged to mark the side of tire products in accordance with international requirements. Initially, this standard was used only in the United States, but gradually spread throughout the world. In addition to the country of manufacture, model, purpose, direction of rotation and other characteristics, the level of wear resistance is indicated on the side of the tires.
Treadwear- definition indicating the coefficient of wear resistance. Treadwear of 100 (average) assumes a range of 48,000 km on standard road surface typical of a test site.
Of course, in natural conditions, this indicator is not so accurate - the quality of the road, driving style, weather conditions and other factors significantly affect the tread wear and service life. But, paying attention to the index, you can still determine the level of tire wear resistance.
Methods for determining tire wear
The wear level should be checked regularly. This will avoid not only a fine from the traffic police, but also reduce the risk of trouble on the road.
There are several ways to determine the degree of tread wear.
Method 1. Check the tire wear indicator
An indicator is a tread block located inside the tread grooves. Its height is equal to the permissible wear rate (1.6 / 4 mm). If the tread has worn down to the level of the indicator, then the rubber must be urgently replaced.
To find where the indicator is located, examine the side of the tire. Opposite the tread block, a small stamp is usually applied in the form of a triangle, the logo of the manufacturer, a snowflake or the abbreviation TWI.
Recently, digital indicators have become widespread. On the surface of the tread there are numbers that show the level of the groove. As they wear out, they are erased, starting from the largest in value and ending with the smallest and most "deep". For example, if on summer tires only the numbers 2 and 4 remain visible, this is a signal for an imminent tire change. After the number 2 disappears, the tire reaches the maximum allowable wear level and requires an immediate change.
Method 2. Use a special meter
The indicator is not always accurate, so it is advisable for the driver to purchase a tread depth gauge. With this small and inexpensive device, the car owner can independently check the level of abrasion in several places.
Method 3. Use a coin
If attrition is in doubt, and the meter is not at hand, you can resort to using a 10-kopeck coin. It is placed with the inscription "kopecks" in the tread groove.
The word "kopecks" should not be visible. If it reads well, then the tire should be changed or subjected to a more thorough check.
These methods are used to determine the allowable tire wear, which occurs evenly. But often, under the influence of a car malfunction or other factors, the tread wears out completely in the wrong way. To find out if there is any unnatural damage, you need to carefully inspect the wheels.
How to visually identify tire wear
The tread is worn in the middle
If the rubber wears off more intensively in the middle of the wheel, then the greatest load as a result of friction falls on this area.
Possible reasons:
- The tire adheres unevenly to the road surface. Most often this happens if the tire pressure does not meet the manufacturer's requirements.
- Another reason is the pressure drop due to temperature changes. For example, during frosts, the pressure in the chamber decreases, and after the temperature rises or the chamber warms up during movement, it rises and often exceeds the permissible norm.
- The wheels are too inflated. This can happen due to the driver's carelessness or for a specific purpose - some are trying to reduce fuel consumption in this way.
Rubber worn around the edges
If the wear at the edges is much stronger than at the center, watch out.
Possible cause is too low pressure. In this case, the tire is prone to permanent deformation and the tread adheres unevenly to the road surface. To avoid such a nuisance (and the operation and durability of the suspension depends on the under-pumped wheel), the pressure in the chamber should be measured regularly, especially in winter.
The leading edge of the tread pattern is intensively erased
If the corners of the pattern are erased unevenly (the front edges are smoother, and the rear edges are practically not worn out), this indicates insufficient rotation of the wheel.
Possible reasons: problems with the operation of the suspension, failure of ball joints or bearings.
This happens quite often; if such wear is found, the machine should be checked for proper suspension.
A tire is excessively worn on any one side
The culprit is the same loose adhesion to the road surface.
Possible causes: suspension malfunctions or misaligned camber.
Similar symptoms are also typical for trucks - the cause is excessive load on certain parts of the wheel.
Cracks on the sides of the tires
Possible reasons: off-road driving, low pressure, poor quality tires or long service life.
Such deformations usually occur when hitting pits and potholes with insufficiently inflated (or vice versa, inflated) tires. If the wheel pressure meets the requirements, then the bumps on the road are smoothed out due to a kind of shock absorption. But if these requirements are violated, the wheel is subjected to a load and takes the entire blow on itself, deforming under external pressure.
Cracks may indicate that the quality of the material of manufacture leaves much to be desired. They also signal about the old tires and the need to replace them with new ones.
Bulges on the sides of the tires
Possible causes: Damage to the rubber as a result of hitting a hard surface with the side of the wheel.
The bulges appear some time after the impact. A wheel with such damage becomes dangerous for operation; it is advisable to replace the tires as soon as possible.
Dents on the tread
Possible causes: insufficient amortization, unregulated camber.
The shock absorber is responsible for smoothing and evenly distributing the shock load during movement. If it breaks down, the wheel suffers in the first place, receiving an increased impact on certain parts of the tire. As a result, dents and bumps are formed on the entire surface of the wheel.
At the first sign, you should drive the car for diagnostics and check the serviceability of the suspension.
Wear in the form of individual spots on the tread
Possible causes: heavy braking, a sharp turn or a skid with the wheels locked.
Also, the reason can be a long-term fixed load on the same section of the tire, for example, when the car is left idle for a long time, leaving to rest or not using it in winter.
With regular checks, it's hard to miss the moment when it's time to change tires or worry about the causes of unnatural wear. Careful attention to the machine will help you avoid many troubles and troubleshoot problems before it's too late.
Most motorists are well aware that during long-term use of a car, tires wear out and it is time to replace them. But not everyone knows that when purchasing new tires, you can face the fact that they will also undergo accelerated wear. What are the reasons for this? How to avoid accelerated wear and what to look for when buying a new pair of shoes for a car?
Checking new tires in the store
Negligent sellers strive to earn more, so many take "expired" products or store them without following the manufacturer's recommendations. By applying simple but effective advice, you can avoid serious problems associated with defects or accelerated wear of new rubber. Some of the most practical tips include:
Why are new tires different?
Although the above tips and tricks do not contain any complex or specific requirements, they are still neglected by many drivers. The result is the purchase of low-quality rubber, which can not only fail soon, but become a huge danger for the driver himself, his passengers and other participants. road traffic.
Output: Following the advice of those who are versed in high-quality and durable rubber, you can buy it for a long time and avoid buying a defective one. Although it should be noted that there is no absolute panacea for defective rubber, most problems can be identified during operation.
Video - buying new tires
Choosing new summer tires
Choosing new winter tires
Buying new tires - what to look for was last modified: August 28th, 2019 by abc-tire
Wheels provide the vehicle with grip on the road surface, transmission of traction and braking efforts... Excessive tire wear has a negative impact on characteristics such as flotation, agility, handling and ride quality, as well as fuel consumption and noise levels. The condition of the tires is one of the most important factors affecting the safety of the vehicle.
The road traffic regulations set the maximum tire wear, which is defined as the height of the tread pattern. This parameter is set for each vehicle category separately:
- For passenger cars and trailers, it must exceed 1.6 mm.
- The same indicator for winter tires, as well as all-season tires (marking "M + S") - not less than 4.0 mm.
- Cars used for the carriage of goods - 1.0 mm or more.
- For buses - not less than 2.0 mm.
A natural question arises of how to determine tire wear on your own and what signs indicate the unsuitability of tires for further use. Vehicle manufacturers recommend that all wheels be inspected and pressure checked before driving. These simple steps will help you avoid many troubles on the road.
Degree of wear of automobile tires: method of determination and impact on traffic safety
In the process of movement, the wheel is subjected to significant mechanical loads, which are caused by the following factors:
- The weight of the vehicle.
- Centrifugal forces from the rotation of the wheel.
- Efforts arising from interaction with the coating.
The last factor is decisive, especially in our country, where the state highways in many areas it is far from ideal. In addition to poor-quality coating with a significant number of pits and potholes, increased rubber wear causes:
- Wrong selection of tires for the season and speed limit.
- Unsatisfactory technical condition of the running gear, suspension, steering mechanism and brake system.
- Overloading the vehicle.
- Mismatch of tire pressure to the set values.
- Driving style with frequent and intense acceleration, cornering and braking.
- Violation of storage conditions for seasonal rubber and installation technology.
The current traffic regulations explicitly prohibit the use of tires with the following types of damage:
- The height of the picture is less than the values provided for this type of vehicle.
- An indicator of the degree of wear of the tread of the tire with even wear appeared at the bottom of the groove of the treadmill.
- Broken tires: cuts and tears: through, stripping and superficial.
- Deformations: Blisters on the sides and the treadmill.
- Complete or complete peeling of the tread from the base.
If the tire wear is uneven, the tire wear indicator is checked in two sections. Their appearance indicates the unsuitability of the wheels for further use. The use of such tires can lead to loss of control. vehicle, reduced cross-country ability and increased fuel consumption. In case of significant damage to the tire structure, its complete destruction on the go with unpredictable consequences is possible.
The tire wear pattern says a lot about technical condition the vehicle and the driving style of its owner, in particular:
- The development of the outer stripes of a treadmill indicates prolonged low pressure driving.
- The wear by spots located in different places of the tread directly indicates the wrong wheel balancing and damper damages.
- The low tread height in the center of the treadmill indicates the use of tires under increased pressure.
- Wear on the inner side of the tire or the outer part indicates a violation of the wheel alignment angles.
The diagonal tread pattern of the treadmill clearly demonstrates the car owner's commitment to an aggressive driving style.
Method for determining the degree of wear of automobile tires
The current traffic rules directly prohibit the operation of vehicles with tires that do not meet the established requirements. How to check tire wear and avoid getting into an unpleasant situation on the road? You can do this yourself, but it is better to contact a specialist. The method for determining the degree of tread wear is as follows:
- Measurements are made using a special tool: a depth gauge. It is possible to use a caliper and even improvised means such as a ten-kopeck coin as a template.
- The tread depth with uniform wear is controlled in a separate area, the area of which is at least 1/12 of the size of the treadmill.
- The height of the pattern is determined in the places with the greatest tread development. If there is an edge in the center, then measurements are made along its edge.
In case of uneven wear of car tires, the check is carried out in several sections, the total area of which is equal to the value indicated in the first paragraph. Measurements are made at different points with the highest output, the lowest value is taken into account.
Tread condition monitoring should be entrusted to the tire fitting specialists of our auto technical center, who have extensive experience in carrying out such operations. Wizards will not only establish the possibility of further use of tires, but also point out possible malfunctions car. Consultations on the rules and conditions for seasonal storage of rubber will also be useful.
Tires that have exceeded their wear limits will significantly reduce the vehicle's handling and may cause a road traffic accident. In this case, you should adhere to the rule: erased a tire - replace a pair, while better preserved rubber can be used as a "spare tire".
Have you ever wondered how much car tires affect safety? In the meantime, the correct use and timely replacement of worn-out tires can significantly reduce both the overhead costs of maintaining the car, as well as save the priceless life and health of people in the car.
Tip # 1
The main function of the tread on tires is to drain water from the contact patch for better grip, shorter braking distances and, most importantly, for safe driving on wet asphalt, to avoid aquaplaning. So it has the most important role to play in the tire as an active vehicle safety feature. Always remember this!
Council number 2
Degree of tread wear. As soon as the residual tread height reaches the minimum value of 1.6 mm, further use of the tires will no longer be safe. However, not all tires will handle this level of wear reasonably. So by unwritten rules, or by common sense (call it what you want) summer tires it is advisable to change when the depth of wear reaches 2-3 mm, for winter tires the maximum wear will be 4-6 mm ..
Tip # 3
Methods for determining tread wear.The first and easiest way to check is by visual inspection. With its help, you can diagnose the most obvious tire damage. Severe or uneven wear, cuts, cracks or other damage. Also look for a wear indicator on the tire (this is a protrusion located perpendicular to the axis of rotation of the tire). He will tell you how much the tire has exhausted its resource. If it is flush with the tread, then the tire needs to be replaced. It is not safe to ride on such a tire. In some weather conditions, the protector is unlikely to fulfill its function.
Tip # 4
For a more accurate measurement residual tread you can use a caliper or a ruler with a depth gauge. To obtain the most reliable data on the condition of the tire, tread measurements must be carried out at 10 different points around the circumference of the wheel. In the center and at the edges of the tire. If all measurements coincide and they are more than the minimum permissible values, then this tire will still be able to serve you. Of course, they can be carried out by the more common method, using a coin, but this will reduce the accuracy of measurements.
Tip # 5
These measurements carry another important factor, with the help of them you can diagnose the condition of the suspension, descent-collapse wheels, as well as how close or far from ideal your riding style is. We will write more about this in the next article.
Tip # 6
Replace tires every 6 years. Tires, like any other product, have an expiration date. Maximum term The service of these rubber products is 10 years. But this does not mean that they can be safely operated during all this time. Even if there are no obvious signs of wear on the tires and their mileage is far from prohibitive, it is advisable to replace them after 6 years of operation with new tires... This waste is nothing compared to possible problems which such tires can deliver. Safety comes first!
Moreover, absolutely all tires wear out - chamber and tubeless, winter and summer,. You can check the degree of their wear using a special device, an ordinary coin, or by the tire wear indicators on the tire (not available on all rubber).
The minimum allowed indicator height is 1.6 mm. When it touches the asphalt, it means it's time to change the tire.
After the first winter, the grip of the tire decreases by about 10%. Further, the characteristics deteriorate exponentially (faster and faster). In addition, the elasticity of the tread rubber is reduced. Car tire wear occurs gradually, so it is quite difficult to determine wear by the behavior of the car on the road.
The check must be done visually. Otherwise, in the event of a critical situation, the rubber may not cope with the functions assigned to it, which can lead to an accident. The permissible tire wear is most often determined by the depth of the remaining tread at the location indicated by the rubber manufacturer. For example, for winter tires minimum corresponding depth is 4 mm, a for summer - 1.6 mm... But it is worth noting that the wear is not always uniform and if a certain reason arises, it can be more from the inside, outside or sawtooth.
| Types of rubbed rubber with uneven wear and recommendations for remedial action | ||||
|---|---|---|---|---|
| Type of | Illustrative example | Factors | Causes | Advice |
| Eats rubber in the center | High pressure in the center of the wear scar | Discrepancy in disc size, pressure or load. Incorrectly selected or over-inflated tires | Pick up more suitable tires... Balance the pressure according to the loads. Check the similarity of wheel and tire sizes. | |
| Rubber wears off at the edges (shoulder areas) | Concentration of increased pressure at the edges of the shoulder areas | Discrepancy in disc size, pressure or load. Incorrectly selected or low tire pressure. | Balance the pressure according to the loads. Check the similarity of wheel and tire sizes. Find more suitable tires. | |
| Washable on one side (outside of the wheel or on the inside) | Lateral pressure build-up | Unbalanced position of the axles and / or wheels on them. | Check and install similar camber. | |
| Lateral comb wear | ||||
| Staggered shoulder wear on both sides | ||||
| Longitudinal comb wear | Dragging | A certain driving style. Unbalanced axle position. Discrepancy in loads and pressure. | Check and balance the axles of the car. Balance the pressure according to the loads. | |
| Wavy shoulder wear on one side | Unbalanced position of the axles and / or wheels on them. Suspension knots malfunctions. Disproportionate tire weight. | Check and balance the axles of the car. Check and, if necessary, repair suspension components. Eliminate imbalance. | ||
| Eccentric wear | Dragging | Distortion of the correct wheel size. Weight disproportion in the wheel and / or power diversity. | Identify the causes of incorrect wheel geometry and eliminate them. | |
| Dragging | Difference between tires when paired installation. Inoperability of individual suspension units. | Check in pairs installed tires for compliance with each other. For prevention purposes, periodically swap them. Check and, if necessary, repair suspension components. | ||
| Lateral pressure or pulling through | Difference between tires when paired installation. Unbalanced position of the axles and / or wheels on them. Inoperability of individual suspension units. | Check the paired tires for consistency. For prevention purposes, periodically swap them. Check and balance the axles of the car. Check and, if necessary, repair suspension components. | ||
Causes of tire wear
In total, there are seven main reasons that affect vehicle tire wear. At the end of the article, there will be recommendations to help drivers extend the life of their tires.
Asphalt temperature
The first factor affecting tire wear passenger car, - this is road surface temperature, most often, asphalt. It should be pointed out right away that the higher it is, the higher is the wear of car tires. There is a perfectly logical explanation for this.
The fact is that when the wheel moves, its surface heats up due to natural friction on the road surface. And the higher the speed, the higher the temperature. Under normal conditions, heat should be transferred from the rubber to the asphalt. However, in the heat, the opposite situation occurs, as a result of which the wheels are even more heated. The surface temperature of the tire can reach + 60 ° C ... + 70 ° C and even higher. Under such conditions, the top layer of rubber softens and wears out (it simply "stays" on the asphalt).
In hot weather, always monitor the tire pressure. It can be increased by 0.2 ... 0.3 bar, but no more!
Asphalt granularity
Driving on coarse asphalt will result in excess tire wear. Crushed stone with sharp edges often sticks out on the surface of the road, which in itself is harmful to rubber. And if you add here the summer heat, then the colors are completely thickened. In addition, according to statistics, driving on such asphalt is associated with approximately 0.3 ... 0.5 liters for every hundred kilometers.
There is only one way out in this case - try to drive at a low speed and control the tire pressure. When using block wheel protectors on the drive axle when driving on bad asphalt wheel deformation may occur. This will result in the so-called sawtooth tread wear. It is due to the pulling through of the mentioned blocks. This is fraught with their complete abrasion.
Speed mode
Driving at high speeds is accompanied by excessive tire wear. This is due to the high mechanical stress and high temperature at which they have to work. According to statistics, at a speed of 120 km / h, the tire wears out approximately twice as fast as at 60 km / h. However, it depends. The higher the speed the tire is designed for, the softer its surface will be.
However, this applies more to racing tires, and for an ordinary motorist, the main thing to remember is that driving at high speed will significantly reduce the tire life.
Tire pressure
The air pressure in the wheels affects not only a comfortable ride, but also the wear of the rubber. Its excessive value leads to wear of the central part of the tire, and insufficient - to the side. It is especially important to check the pressure and, if necessary, inflate the wheel before a long trip with a load (for example, on vacation). In this case, the pressure value should be slightly higher than the standard value.
Defective shock absorbers
Shock absorbers not only provide a comfortable ride for the driver and passengers, but also smoothly distribute the forces to the wheels. Especially when driving in holes, when the suspension actually works. Accordingly, with faulty shock absorbers (the more worn they are, the stronger) the load on the tires increases, which means excessive wear of the rubber occurs. There is only one way out - to monitor the condition of the suspension elements and, if necessary, carry out timely repairs.
Wheel alignment angles
This is the so-called camber / convergence. In normal position all wheels must be strictly vertical... Otherwise, the ride will not be performed over the entire area of the tire, but along the inner or outer part of it. Accordingly, its wear and tear will be the same. There is one more nuance here. The fact is that when driving in full area, the contact patch with the road will be maximum. This means that, other things being equal, wear will be evenly distributed over the rubber surface. Camber / toe imbalance is the main cause tire wear on the inside.
If the wheel is tilted to one side, the contact patch will be significantly reduced, and a similar load will fall on a smaller area. And the smaller the spot (narrower track), the greater the wear.
In fact, a pit caught in the way, which led to an imbalance of camber / convergence, can literally "kill" a tire even after 1000 km of run. So be sure to keep an eye on this important characteristic undercarriage of the machine. If camber / toe is not observed on the rear axle, then there is a risk of damaging the silent blocks with the ensuing consequences.
Outside tread wear can also be caused by high speed cornering. But wear on the inside is only the wrong camber / toe. If the wheel is installed strictly vertically, and the wear pattern speaks of baldness at the same time on the outside and inside, then there is a low tire pressure.
For more even wear of the driven and driven wheels, it is recommended to periodically swap the front and rear tires.
In case of incorrect camber / toe-in, the vehicle on the road will scour from side to side. Also, often at the same time, there will be a squeak of rubber when cornering, even at a normal (not overestimated) speed.
Wheel imbalance
If the wheel is not balanced, and some part of it weighs a little more (mass shift), then this can lead to the appearance of the so-called bald patches... Moreover, they can have a point (spotted) character. Naturally, the thickness of the rubber in the spot area will decrease faster until the tire is completely out of order.
In fact, this phenomenon is very dangerous, because a bald patch on a wheel is more difficult to find than a bald patch in the form of a strip or uniform wear. At the same time, driving at high speed on such a tire is very dangerous. Especially on poor quality and / or hot surfaces (asphalt). Therefore, always keep an eye on the balancing of all wheels of your vehicle.
How to determine tire wear
There are several simple ways how to check tire wear. Among them:
Michelin and Nokian tire wear indicator
- Wear indicator... This is the jumper on the center groove. As long as this jumper does not touch the asphalt, the tire can be safely used. But as soon as the tread wear has reached the stage when the indicator jumper also began to touch the road, and even more so wear out, it means tire to be replaced... Unfortunately, not all tires have a wear indicator, but only more or less expensive ones produced by well-known brands. As a rule, rubber manufacturers visually indicate the place where the indicated indicator takes place on the tire. Typically, this is one of three options: a triangle icon, TWI lettering, or an indicator located near the brand lettering on the tire.
- Digital indexes... Digits from 8 to 2 are extruded into the body of the protector. summer tires or up to 4 in winter. Digit 8 has the smallest depth, respectively 2 and 4 - the greatest. As the tires wear, the numbers wear out, which makes it possible to assess the condition of the tread. The critical level of rubber wear comes when the last figure disappears from view.
- Color indicators... Recently, tires have appeared on the market, the surface of which changes color with wear. Typically, the tire turns red when it is most worn. However, these tires are quite expensive, so they have not yet found widespread use.
- Profile depth gauge... This is a special small, usually plastic, device with a fine tip that is inserted into the protector to measure its depth.
- Other methods... Tread wear can also be measured with a caliper, ruler, or coin. The first two tools can be used by simply inserting them into the groove and measuring the depth accordingly. As for the coin, a two-ruble coin is suitable for this. So, the head of the engraved eagle is placed in the protector. Accordingly, after this, the head should not be visible, which means that the rubber is in order. If the whole eagle remains in sight - it's time for you to go to the car shop for new tires.
Do not forget to regularly check the condition of the rubber, and do this not only in the off-season when changing summer tires to winter ones or vice versa, but also during driving, especially after long trips or driving on bad asphalt.
Wear indicators of famous brands - Bridgestone, Dunlop, Yokohama, Kama
In most of the world famous tire manufacturers, the wear indicators are slightly different.
So, a well-known brand Bridgestone The tire wear indicator is located on the side of the tread. These marks are made in the form of an arrow, and there are 6 of them on the bus. The manifestation of these marks on the use of tires means that the wear has come to a critical point, and it is better to replace them.
Have Yokohama similar wear indicators. Additionally on winter tire there is a special mark in the form of a protrusion in the middle of the tread. Replacement signal - if this protrusion is compared to the rest of the tire surface.
On tires from Kama the wear indicator is implemented as a scale. There is a special scale on the side of the tire, from 2 to 7 mm. Nearby, parallel to the scale, a small groove is made, which has a gradual deepening from one edge to the other. And thus, in the process of tire wear, this groove decreases, and on the scale it clearly shows that the rubber is worn out, how many mm of wear.
On tires from Dunlop wear marks on the tires in the tread grooves there are special jumpers. When they compare in height with the rest of the surface, then it's time to change the tires.
Regardless of what the cause of tire wear was in your case, there are several simple recommendations, the implementation of which will allow you to increase (it does not matter, winter or summer). These include:
Measuring the depth of tread wear with a coin
- Correct tire pressure... Its value should be checked approximately every two to three weeks, and if necessary adjusted (pumped up). Remember that low pressure not only wears out the tires excessively, but also increases fuel consumption and therefore your money.
- Serviceable suspension... Serviceable shock absorbers are not only synonymous with a comfortable ride, but also low tire wear. Monitor their condition and, if necessary, repair or replace.
- Choosing the right one speed mode ... This is one of the most important factors affecting tire wear. Firstly, the faster the car travels (the wheel rotates), the faster the rubber becomes bald. Secondly, when the car rolls in a corner at high speed, the outer and even the lateral surface of the tire is worn out. Always adhere to the speed limit and try not to start and brake abruptly (and even more so with slipping or skidding).
- Buy good rubber ... We are not talking about expensive world famous brands. But it is also not worth purchasing frankly low-quality rubber. It is highly likely that such a tire will not last long. This means that you will have to go to the store again. Everyone knows the saying “a miser pays twice”.
- Change tires in time in autumn and spring... Not only is it dangerous to ride on summer tires in winter, it also leads to wear when slipping on ice or in snow. Likewise, it is not recommended to drive winter tires in summer, especially if they have thorns. This brings the tire to its ultimate wear.
Conclusion
You can check tire wear only visually using a special device, a coin or an indicator of their wear, if any, on the tread. If the tires of your car suddenly began to go bald quickly, look for the reason among the above. And eliminate it accordingly. And the sooner you do this, the longer the tire will serve you later. Well, heed the recommendations for in working order. For new tires, try to buy tires from the mid-range or higher price range. Cheap rubber does not last long even if the listed recommendations are followed.
