How many locations does discount tire have

- Tire marking

Contents

Tire manufacturers put markings on the rim so that the buyer can immediately understand the characteristics and features of the model. The main parameters include size and seasonality, and there can be more than 15 in total. The more tips the manufacturer puts on the tire, the easier it is for the motorist to choose the right rubber. It is important to be able to read this information correctly, taking into account the fact that marking standards in different regions differ from each other.

Size marking

Tire size is the very first parameter that you need to pay attention to. If you make a mistake with it, the tires will not provide safety while driving or simply will not fit on the disk. Permissible sizes are indicated in the vehicle's operating instructions in this form: 225/55/R18. These three indicators mean:

• Tire width;
• Profile height;
• Diameter and type of construction.

The first number, in this case 225, indicates the width of the profile in millimetres. The distance between the side parts of the tire affects the driving performance of the car. Wide tires promote fast acceleration and improve handling at speed, but are more likely to hydroplan.

The height of the profile is indicated not in millimeters, but as a percentage of the width. The relative value is used so as not to complicate marking with fractions. In our example, the height is 123.75 mm (225*0.55). Low profile tires are used for fast driving on smooth asphalt, a high profile increases stability on rough roads.

In the third indicator, the number determines the size of the inner diameter of the tire in inches, and the letter determines the principle of the arrangement of cord threads. R18 is an 18" radial tire. The diagonal type of construction is indicated by the letter D and is almost never used for car tires.

In the US, the tire size marking for SUVs and light trucks differs from the universal European one. It lists in turn the outer diameter, profile width and bore diameter, all values ​​are in inches. The additional letter characters P or LT stand for car and truck, respectively. To quickly convert markings to the metric system, you can use a tire calculator.

Speed ​​index marking

The

Tire Speed ​​Index is determined by manufacturers at the design stage and then confirmed by bench and field tests. It shows how fast the car can be accelerated without compromising driving safety and premature tire wear. On uneven asphalt, the speed should not exceed 90% of the maximum allowable.

The speed index marking is universal throughout the world. It is indicated in Latin letters, where A is the smallest limit of 5 km / h, and Y is the maximum, 300 km / h. Features indicators:

• A-P, 5 to 150 km/h. Tires for special equipment and heavy trucks.
• Q-S, 160 to 180 km/h. Tires for SUVs and light trucks.
• T, U, H, 190–210 km/h. Common markings for passenger cars. Note that the letter H indicates a higher limit than U.
• V-Y, 240 to 300 km/h. High speed tires for passenger cars.
• VR, ZR and Z are sports car tires that show high performance at speeds over 210, 240 and 300 km/h respectively.

The speed index is calculated in relation to the load factor. They are listed together after the frame size in this format - 91H.

Load index marking

The load index shows the maximum load capacity of one tire. It is defined by a number from 0 (45 kg) to 209 (18.5 tons). To calculate the maximum load of a passenger car, you need to take the value of the coefficient from the table, multiply it by four and subtract the dead weight of the car. If tires with an index of 100 Li are installed on a car weighing 1.5 tons, the load capacity will be 1700 kg, taking into account the driver and passengers (800 * 4-1500).

Typically, manufacturers indicate the load index with a margin of 10-20%. Short-term exceeding the limit will most likely not lead to tire damage, but regular trips in an overloaded car are highly undesirable. The optimum load index is indicated in the instruction manual.

Seasonal marking

The seasonal marking indicates under what weather conditions the tire will be most efficient and safe to use. The type of rubber can be identified by symbols.

Winter tires

Marked with a snowflake icon inside a rock with 3 peaks or the inscription Winter. Must be accompanied by the addition of M + S (from the English mud + snow, mud and snow). If both conditions are met, then the compound is sufficiently resistant to negative temperatures, and the tread is adapted to driving on snowy and icy roads.

All season tires

This type is easily distinguished by the corresponding signs:

• AS - any/all season, for any season;
• RW - road and winter, for dry and snowy roads;
• AW - any weather, for any weather;
• A.G.T. — all grip traction, universal traction characteristics.

Marking may be accompanied by the M+S mark mentioned above if the rubber retains traction in muddy snow.

Rain tires

Summer tires for wet roads are marked with an umbrella icon or Aqua, Water, Rain and the like. Rain tires are not always labelled. In this case, deep channels for draining fluid, a large number of lamellas and a low profile will help to distinguish them.

Regular summer tires are not seasonally marked. It differs from winter and all-season models in greater rigidity and a shallower tread depth.

Tread Type Marking

The tread type marking is applied to tires with asymmetric and directional patterns. These treads improve directional stability and provide protection from rain - they resist hydroplaning and shorten the braking distance on wet roads. Tires must be installed on the correct side to perform these functions. Marking helps to determine it:

• Outside (Side facing out)
• Inside (Side facing inwards) - inside.
• Left and Right - installation on the left or right side of the car.
• Rotation - the arrow next to the label indicates the forward direction.
Chamber marking

Most passenger car tires are tubeless. Due to their design, they fit snugly to the disc, forming a chamber with its own internal volume. Tube-type tires are common on two-wheelers, buses and trucks. You can determine the type visually, but manufacturers sometimes put explanatory markings on tires:

• Tubeless
• Tube Type - chamber.
Country marking

The marking of the country in which the tire was produced can be either expanded, for example, Made in China, or encrypted in the form of a country code and manufacturer.

The first two characters after the DOT abbreviation, the US Department of Transportation standard, will help you figure out the origin of the tire. Some manufacturers indicate the decoding of DOT codes on the official website, in other cases, special resources with tables and mobile applications will help.

Production date marking

The production date can be found using the same DOT code. It is indicated by the last four digits. Please note that the date is not indicated in the usual month-year format, first the serial number of the week is indicated. Marking 1313 means that the tire was manufactured from March 25 to March 31, in the 13th week of 2013.

Additional marking options

Manufacturers strive to display as many advantages and features of the tire as possible on the sidewall, which is especially true for premium models. To do this, they use additional marking symbols.

• Reinforced - reinforced six-ply tire with increased load capacity. May be abbreviated as RF after the size, eg 215/75/R15RF.
• XL and ExtraLoad - increases the declared load index by 3 points.
• FR and FD - the presence of disc rim protection in the first case and its absence in the second. German tires with rim protection are labeled ML, not to be confused with M.L. — rubber for mining machinery.
• RSC - RunFlat technology, which allows you to get to the service on a punctured wheel at a speed of no more than 80 km / h. It may be referred to by different manufacturers as RFT, ROF, ZP or SSR.
• Temperature - the level of heat resistance at high tire heating. Defined by letters A, B and C, from best to worst.
• Traction - the quality of braking on wet roads. Indicated in Latin letters by analogy with the heat resistance coefficient.
• SAG is an off-road tire optimized for off-road driving.
• SUV - tires for crossovers and parquet SUVs.
• Treadwear is a wear resistance coefficient that shows the maximum allowable tire life.
• TWI - indicates the location of indicators for the degree and uniformity of tread wear.

Yes

100%

Voted: 5

Totals

The tire marking contains all the necessary information about the characteristics and features of the model. By remembering how to correctly read the different marking symbols, you can save time when choosing a new rubber. Knowing the design features and type of tread, speed and load indices will allow you to immediately understand how the tires will behave on the road.

We repair tubeless tires: methods and rules

Modern passenger cars are equipped with tubeless tires. Tires with rubber chambers inside are extremely rare today, only on super-budget vehicle options. Car owners have long appreciated all the convenience and benefits that tubeless tires have. Unlike chambered rubber, they keep air in the wheels by being sealed to the rim. The tightness of tubeless tires is ensured by a two-millimeter layer of rubber applied to the tire from the inside. It is he who prevents the passage of air. The coating of soft rubber layer provides tightness at the junction of the tire with the rim of the rim. The tire bead sits on the so-called rim shelf, which is equipped with a special rounded ledge. Thanks to him, the tire is securely connected to the wheel rim, and complete tightness of the joint is achieved. A tubeless tire is filled with air through a valve installed on the rim, on its rim.

Advantages of tubeless tires over tubed tires

Why did tubeless tires become so popular that they gradually replaced tubed tires? First, tubeless tires are much lighter. This is a very important and great advantage, because heavy weight enhances the inertial movement of the wheel when driving on, to put it mildly, imperfect road surfaces, which we still have much more than smooth autobahns. As a result, this affects the condition of the chassis, accelerates its wear. In addition, tubeless tires do not heat up during driving in the same way that chamber rubber heated up, in which the inner cylinder rubbed against the tire while driving. Such friction led to its rapid wear, and also increased the likelihood of tire rupture during movement. When a tube is punctured, the tube tire loses air very quickly, since it escapes not only from the puncture site, but also through leaky tire beads that do not fit snugly against the rim flange. In addition, if such a tire is punctured, you will not be able to stop the car immediately, it will travel more than a dozen meters by inertia until it comes to a complete stop. During this time, the tube and the tire can be damaged more thoroughly, the rubber of the inner cylinder will “chew”. With tubeless tires, this option is excluded. Even if a puncture occurs, thanks to the tightness of the chamber and its periodic pumping, you can get to the tire service.

Tubeless and tube tires also differ in how they are mounted / dismantled. If chambered rubber can be freely disassembled or, conversely, installed at home, then such a number will not work with a tubeless one - the risk of damaging the side flanges is too high, damage to which will lead to depressurization of the tire. Due to the peculiarities of installation and dismantling, many motorists find it impossible to repair a tubeless tire with their own hands, especially on the road, not in a comfortable garage, but on the side of the road. And in vain. Of course, it will not be possible to completely eliminate the problem at a professional level without special equipment. But to make sure that the damaged tire still travels, and sometimes not only reaches the tire fitting center, but goes more than one hundred kilometers after an impromptu repair, is quite realistic.

To do this, use special tire repair kits, which can be purchased everywhere today by going to any car shop. Better yet, buy everything you need to repair a tubeless wheel yourself separately and always have it ready. By doing this, you will save some money, which is always nice. The fact is that manufacturers of ready-made repair kits, in an effort to make their kits more expensive and solid in appearance, include in them both really useful tools and materials, as well as those that you can easily do without. Using repair kits or separately purchased harnesses and tools, you can repair tubeless tires not only for cars, but also for trucks. This can also be regarded as one of the advantages of tubeless tires over tube tires. It is much more difficult to repair it with a puncture. It is necessary to disassemble the wheel, remove the chamber, find the puncture site, and then degrease the working area, cut out the patch, and seal the rubber balloon. After drying, the camera is installed in place, and the wheel is beaded. With a tubeless tire, everything is much easier.




RUNWAY Tubeless Tire Repair Kit, 7-Piece

What to do in the event of a flat tire

If you find that your car's tubeless tire wheel is damaged, first assess the severity of the situation. If, in your opinion, you can do without repair, having reached a reliable tire service on periodic pumping of the wheel, then it’s better to do so. Tubeless tires were designed to hold air even with foreign objects sticking out of the cord. But do not forget that riding with a nail or other object in the tire causes the puncture to gradually expand and the tire around the damaged area begins to gradually collapse.

But, if it so happens that the damage to the wheel received on the road is too extensive, the chamber does not hold air and it will not be possible to complete the journey while inflating the tire, you need to choose the best method of temporary repair and start it immediately. A tubeless tire is repaired in the following ways:

When choosing a repair using a tourniquet, you need to decide what type of material will be used. The harness can be cord or rubber. Let's consider both of these options.




Wheel repair kit, 6 pieces

Tire repair using cord harness

Cord harness has found wide distribution as a repair material for tubeless tires. With this harness, you can carry out repairs in any conditions: on a city street or on the side of a country road. It is a strip of high-strength nylon, which is richly impregnated with high-quality rubber-based adhesive. Such harnesses are supplied to the domestic market by many manufacturers, they have certain differences in technical characteristics and cost. But all cord harnesses are installed according to the same type of scheme:

1. First of all, they find the place of damage and mark it with wax crayon or another marker.

2. Remove the item that damaged the tire if it is stuck in the cord.

3. Then you should check the tire pressure, it should not fall below 0. 5 atmospheres.

4. Take a spiral awl and use it to determine at what angle the tire is damaged.

5. Apply vulcanizing glue to the awl.

6. Using the awl inserted into the puncture, coat the puncture site with glue in the most thorough way, for which you need to rotate the tool lubricated with it clockwise. Perform this action three times - lubricate the awl and insert it into the puncture, then leave the tool in the cord for the time being.

7. In the meantime, select the desired harness and carefully remove the protective film from it.

8. Insert the tourniquet into a special needle, focusing on the center.

9. On both sides, cover the surface of the tourniquet with vulcanizing glue.

10. Remove the helical awl from the tire where you left it at the puncture site.

11. Install a pen with a needle and a tourniquet placed inside into the puncture.

12. By pressing the handle, install the needle with the tourniquet into the puncture, advancing to the stop at a given angle.

13. Remove the pen with the needle from the puncture site without rotating it.

14. Carefully cut off the parts of the tourniquet sticking out on the surface.

Then you need to determine how tight the tire is repaired. This can be done with the help of a special liquid, which is used to determine the puncture site. If, after applying such a liquid, no air bubbles appear, then the tire is temporarily repaired and can be used further. If air bubbles appear, try installing an additional tourniquet in the place of damage to the tire.

This method of temporary repair is inexpensive, but it has proven its effectiveness more than once. A tire repaired in this way without repair will serve you for a long time - up to 6 months.

Use of rubber band

A rubber harness costs more than cord, but it is also more reliable. They install it in much the same way as the cord one, but there are still some differences. For example, when installing a rubber band, do not use an awl in the form of a rasp, since it can damage the rubber band during installation. In addition, the rubber band must be mounted on the adhesive specified by the manufacturer in the instructions for the repair kit.




Raw rubber band for repairing RUNWAY tubeless tires, 5 pcs

Tubeless tire repair with anchor

In this case, an anchor is a special type of bundle, one end of which ends with a small patch. The anchor is installed in the same way as other types of harnesses, but in addition, it glues the puncture site with an internal patch. To do this, the tourniquet is pushed inward, and then pulled a little in the opposite direction. Anchor can only be installed using a special cutter with a diameter of 6 mm. It is purchased separately from the set. But your efforts will surely be crowned with success, because the anchor is considered the most reliable option for repairing a tubeless tire with a harness. But with the help of harnesses, you can not repair side punctures. And in any case, even if the repair is successful, it is necessary in the coming days to choose the time to visit the tire service. Remember that prolonged use of the harness will cause irreversible damage to the tubeless tire. And until the problem is fixed, constantly monitor tire pressure.

Tire repair with sealant

The second option for repairing tubeless tires involves the use of sealant. This option cannot be called optimal, but it has become widespread, since tire repair in this way is carried out very quickly, literally in a matter of minutes. And the result of its implementation is guaranteed to allow you to get to the intended purpose of the trip, without first stopping by the tire service you met along the way.

The sealant is very easy to apply. In this case, it is not necessary to remove a nail or other object from the cord, due to which the tire was damaged. Simply attach a bottle filled with sealant to the valve on the rim of the wheel and see that the contents of the bottle are pumped into the wheel. Keep in mind that repairing a tire with sealant will significantly disrupt the balance, so choose a moderate speed. But on the other hand, repairs with the help of a sealant are easy, simple and very fast. You can use it even while standing in a traffic jam.

Today, you can easily buy different types of sealants. The most widely used gel, liquid, aerosol formulations. Gel ones are good because they can be used all-season, both in the summer heat and in the cold season. But at the same time, they significantly worsen the balance of the wheel. Liquid sealants are highly reliable, but they are not very convenient to use. Aerosol compositions make it possible to restore the performance of the wheel without a jack and a pump. But in the cold winter period, they will not work. If we compare the restoration of a tubeless tire, carried out with the help of sealants and harnesses, cord or rubber, then the latter are considered the preferred option, since they provide a fairly high quality of the repair performed with their help.

---

Learn more

• 
  How to put brake in tire atv
• 
  How to fix a leaking tire valve stem
• 
  Drill to change tires
• 
  How to charge the battery on a polaris atv
• 
  Tire emergency repair kit
• 
  How to wire led light on atv no battery
• 
  How much does the average tire weigh
• 
  How much snow can atv push
• 
  How much torque for tires
• 
  Air wrench repair
• 
  How to clean film off new tires