In detail: do-it-yourself runflat tire repair from a real master for my.housecope.com.
Run flat tires differ from conventional tubeless tires in a denser sidewall, which makes it difficult to mount the tire on the rim. To assemble the wheel, the so-called “assistant” or “third hand” is used.
Our tire fitting stations offer quality service installation and repair of RunFlat tires.
Run flat tires differ from conventional tubeless tires in a denser sidewall, which makes it difficult to mount the tire on the rim.
To assemble the wheel, the so-called “assistant” or “third hand” is used - a device that is attached to the tire changer. This device serves to press the sidewall of the tire, and also saves the disk from damage during work.
It should be borne in mind that such devices are only included in the package of professional tire changers, which are not installed in all tire changers due to their cost.
That is why it is worth contacting professionals, which include the specialists of our station.
Professional tire changer, especially for runflat tires, with an automatic mounting system that does not damage the rim and reduces the operating time;
Professional balancing equipment with Haweka adapters, which allows you to achieve high-precision balancing;
Repair of the tread part of the tire is made with Tech materials in compliance with the repair technology, which ensures the reliability and safety of the repaired tire;
Professional editing of discs guarantees the complete elimination of axial and radial runout;
Proper seasonal storage of tires and wheel assemblies will ensure that your tires will last you as long as possible.
Puncture repair on tires with Run on Flat technology is 400 rubles, plus the necessary work to remove / install the wheel.
RunFlat is translated into Russian as "flat rideor driving on a flat tire.
RunFlat technology is based on the principle of reinforced tire sidewalls. When a regular tire deflates, it buckles under the weight of the car, the beads pull away from the rim, and the tire flattens onto the road. When driving, the weight of the car completely destroys the tire in a few hundred meters. The reinforced sidewalls of the RunFlat tires keep the tire on the rim and support the vehicle's weight after a complete loss of pressure. At the same time, all dynamic vehicle security systems such as ABS, ESP, DSC, CBC, etc. remain active.
Video (click to play).
The maximum driving distance on a flat tire depends on the tire manufacturer and operating conditions (50-150 km) The maximum vehicle speed is up to 80 km/h. In order not to destroy the tire due to pressure loss, pressure sensors are installed inside the wheel, which will notify the driver of a decrease in pressure. Without a pressure control system and a stability control system, it is dangerous to use RunFlat tires, as it is possible to lose control over the vehicle's trajectory in the event of a loss of tire pressure.
Tire manufacturers use different designations for run flat technology:
good year RunOnFlat, Bridgestone RFT, Michelin ZPContinental SSR, Pirelli Run Flat, Dunlop RunOnFlat, Nokian flat run, Yokohama ZPS). All RunFlat tires fitted to BMW vehicles use the designation RunFlat System Component. For RunFlat tires used on Mercedes-Benz vehicles, the designation is used MO Extended
Are special rims required for RunFlat tires?
– All tire manufacturers with runflat technology allow them to be installed on standard rims.
Do tires with run flat technology need to be bought assembled on rims or is it possible to mount and dismantle every season?
– All tire manufacturers with run flat technology allow seasonal tire changes without any negative consequences for the tires or rims themselves.
Do I need special tire fitting equipment to mount these tires?
– To carry out tire fitting work, a tire fitter with the necessary qualifications and modern equipment equipped with a “third hand” is enough
– In any case, only the tread part of the tire can be repaired. The side cuts of RunFlat tires are beyond repair. Repair of punctures in the tread part should be carried out using special patches.
Undoubtedly, progress does not stand still, and every day more and more new developments and devices appear in every field of production. Not far behind this progress and the industry of production of automobile wheels. Relatively recently, a new system has appeared that allows the car to move even when the wheel is punctured or flat.
This development is called Run Flat tires, which means driving on flat tires. This development helps the car move even after a wheel has been punctured. This development has become popular, and all manufacturers use it for their products. One feature of each manufacturer is the Run Flat designation of the system.
In fact, Run Flat technology implies lateral support for the tire. This happens due to the thicker rubber in this place. During a tire puncture, Run Flat is able to keep the car in the same position in which it was before the tire puncture. It should be noted that all stabilization and stability systems remain operational and continue to help the driver keep the car on the road.
Increasingly, drivers are asking how far a car with a punctured tire can travel with Run Flat technology. The declared figures are eighty kilometers at a speed of eighty kilometers per hour. In practice, these figures increase significantly. Some drivers can drive like this for several days.
The main difference between RunFlat tires and others is that more rubber is used to make the tires, and specifically for the sidewalls of the rubber. The second difference between Run Flat tires is that the driver can drive a long distance with a punched wheel without replacing it.
In order for the Run Flat technology to work properly, and the driver to be able to monitor the actual condition of the tires of his car, some sensors must be installed on it. The main thing that should be is a tire pressure sensor. During a tire puncture, the sensor will show that the pressure in the wheel has dropped, and the car is now running in Run Flat technology. The presence of this system is necessary so that the driver knows when he pierced it, and from what moment he rides RunFlat. The second system that must be installed for the full operation of RunFlat is the stability control system.
In addition, drivers still have the question of whether RunFlat can be installed on regular drives and used all year round. A response was received from manufacturers that they take this fact into account when developing tires. Therefore, drivers have the opportunity to ride RunFlat tires all year round without worrying about having to immediately change a punctured tire.
Despite all these advantages, runflat tires can be installed by an ordinary tire fitting worker with conventional equipment. In addition, the safe types of RunFlat tires can be repaired, but there are limitations here. Only the tread part of the tire is repaired.
These tires can be installed both in a specialized car service and in those in which the owner has purchased tires of this technology and sells them to his customers. It should be noted that RunFlat is not a brand, but just a development that many well-known wheel manufacturers use in their production.
As mentioned above, these tires can be repaired.In fact, if after a strong puncture the tire has been driven for ten kilometers, then it is better to replace it with a new one, we recommend making such a decision. As you know, they are more expensive than ordinary tires, so it is not always possible to replace damaged wheels with new ones. In this case, you should resort to repair. In fact, the process of repairing these tires is no different from repairing conventional tubeless tyres.
Unfortunately, all developments are imperfect and have their own advantages and disadvantages, this also applies to RunFlat.
Typically, the price of RunFlat tires is 15-25% higher than regular tires.
The second disadvantage is that the car is stiffer on these tires than on conventional tires due to the hard sidewalls.
The advantages of RunFlat have been listed above, but there are some more that we will briefly discuss.
First, safety is created during a wheel puncture.
Secondly, it is a long-distance stock without a spare tire.
Third, improved governance is created.
All people know that progress does not stand still, and everything is constantly evolving. New phones and computers are released every day, progress has not bypassed the automotive sector. This time, new wheels have been developed that are able to hold the car even after it has been punctured. This technology is called RunFlat, which means running on flat tires.
The essence of the invention is that after the wheel is punctured, it does not descend like a regular tire, but remains at the same level as with air. Like all car systems and the latest inventions, this technology is not perfect and has a number of advantages and disadvantages.
Tires made using RunFlat technology have been on sale for a long time. In the event of a puncture or damage, these tires allow you to get to the nearest (or not so) tire shop, and not have to replace a damaged wheel with a spare tire somewhere on the road. RunFlat is translated into Russian as “driving on a flat tire”. Tire manufacturers use different run flat designations (example: Goodyear RunOnFlat, Bridgestone RFT, Michelin ZP, Continental SSR, Nokian Flat Run, Dunlop ROF, Pirelli Run Flat, Yokohama ZPS).
Run Flat technology is based on the concept of reinforced tire sidewalls. When a regular tire deflates, it simply sags under the weight of the car, the beads pull away from the rim, and the sidewalls flatten onto the road. The weight completely destroys the tire in a few kilometers. Reinforced sidewalls of Runflat tires keep the tire on the rim and successfully support the weight of the car after a puncture and complete loss of pressure.
The benefits of RunFlat tires are clear:
1) Safety - in case of a puncture at high speed, the wheel will not explode and the car will not lose contact with the road (many people probably heard unpleasant stories about how wheels exploded at a speed of 180 km / h while driving on the highway).
2) Saving space in the car: most cars for which RunFlat tires are recommended by the manufacturer are not equipped with a spare wheel.
3) Convenience - in case of a puncture, you do not have to stand on the road, jack up the car and install the spare wheel, just drive to the tire shop.
All RLD centers are equipped with modern German Hoffman equipment, which allows you to easily install Runflat tires
At first glance, everything is fine: RunFlat tires allow you to continue driving even with severe tire damage. True, not too far (no more than 80 km) and not too fast (no more than 80 km/h). You don't have to think about a spare tire or about problems with changing a wheel. All you have to do is drive to the nearest tire shop.
But don't think that RunFlat tires are perfect. They also have disadvantages.
The main disadvantage is their high cost, as a rule, tires with a reinforced sidewall are 1.5-2 times more expensive than ordinary ones. The second disadvantage of runflat tires is that they are not meant for every car. The manufacturer completes the vehicle with RunFlat tires on the conveyor, that is, the suspension of such a vehicle is designed for the use of such tires.It is difficult to predict what consequences the shock absorbers of a conventional car expect from constant driving on tires with reinforced sidewalls. In addition, it is not always possible to find a tire service within a radius of 80 km on some remote highway.
RunFlat technology, based on the strengthening of the sidewalls of the tire, requires the use of special tire changers to mount and demount the tire on the rim. Not every workshop has such equipment. True, if you do not spare the disk, such tires can also be mounted using a conventional machine, but only if the tire fitter is smart.
Another nuance of RunFlat tires is that you can often find out about a puncture only by chance, the behavior of most of these tires in normal and punctured states is almost the same. This means that the breakdown of one or two wheels can only be learned “de facto”. Therefore, a prerequisite for the use of RunFlat tires is that the car is equipped with a tire pressure monitoring system. Otherwise, such tires may not improve safety, but rather harm. For this reason, RunFlat tires should not be used on vehicles that were not factory equipped with RunFlat tires. The opposite rule also applies: the installation of ordinary tires on cars designed for the use of RunFlat tires, even of the same make and model, leads to a sharp deterioration in stability and handling. The obvious reason for this is the difference in stiffness between RunFlat tires and conventional tires, which results in their different cornering behavior.
Among other things, in the RLD centers it is possible to repair Run Flat tires, associated with the elimination of their side damage. Details about tire repair can be found in the section “Tire repair”
What are run flat tires? Translated, it means "driving on a flat tire." Run flat tires differ from conventional tires in that their sidewall is significantly reinforced, and they allow you to support the weight of the car even when deflated.
The figure below shows how the Run Flat tire achieves this capability.