Nails? Not true!

Strictly speaking, the technology of tires that are not afraid to puncture, to name a new one can at a stretch. The first tests GoodYear began 13 years ago. In 1997, the invincible tires were installed in the U.S. serial Chevrolet Corvette. Now my turn came, and to our country, the roads which abound with tons of piercing-cutting items. Bus RunOnFlat, previously known by the acronym EMT, can proceed with the partial or complete loss of pressure. The manual says that pierced the wheel without prejudice can drive 80 kilometers at a speed of 80 km / h. Due to what had such strength? This is achieved through reinforced sidewalls. As the reinforcement material is used rubber insert, not exposed to strong heat. Of course, not only the properties of a new layer of rubber can achieve the desired result. Plays an important role form the tire. With the loss of pressure load is distributed so that the bending of the sidewall was minimal. But one thing is theory, and another - a practice. We now turn to testing. So, tires GoodYear RunOnFlat installed on BMW 1-series with the motor of 1.8 liters. Spare tire for the purity of the experiment are leaving the garage. As a result, the volume of the luggage compartment increased to 50 liters. To simulate the puncture, we lowered the left rear wheel. Oddly, the pressure monitoring system, installed on the car, went treacherously silent. The fact that there are two principles of operation of such systems. One line, which is installed directly in the wheel of a pressure sensor. In the indirect version of the channels are used ABS. By measuring the difference frequency of rotation of the wheels on one axle, the system understands the tire deflated. Less of this option is that the signal of the puncture delayed. Most often, triggering occurs at a complete loss of pressure. Our car was equipped with an indirect system, so for an hour testing the computer has never tried to surprise the news of a deflated tire. Notice something new in the car on the tires GoodYear RunOnFlat very difficult, if the pressure does not fall in an instant, but gradually. We just bleed all the air, and the changes seem obvious. The back of the car was wagging. Appeared excessive valkost during maneuvers. In this case, according to the instructions, the trip took place at a speed of 80 km / h. But remember that we lowered the tire yourself. And if the puncture will in fact, the driver simply did not know what happened. The beginning of demolition at the flat tire occurs much earlier. While the tire and copes with its main task, that is does not drive up to the rim, tire give way sufficiently large. Stabilization of the system at this time are beginning to slow different wheels, saving the car from a strong introduction. Thus, tires GoodYear RunOnFlat were not only able to deliver the car to the nearest shinomantazha. They are not bad and while quite serious maneuvering. Because of the enhanced stiffness sidewall of tires has increased. This is the main problem that developers are struggling RunOnFlat. While her decide to automakers, making changes in the structure of suspensions. Settings achieve the best results to maintain comfort. And if the specific properties of the tires can not see on the highway, the irregularities observed increased "leaping ability." This once again confirms that the installation GoodYear RunOnFlat unprepared for the car is not desirable. This is not a fad manufacturer, and informed recommendations. When driving normally, when all the wheels inflated, the car is controlled with maximum predictability. Tyres excellent road holding even when disconnected stabilization systems. The machine literally sticks to the asphalt, clearly fulfilling every command steering. It remains to recall that during the installation of these tires is necessary that the car was equipped with a pressure control system. Otherwise you risk to miss a puncture and destroy the bus along with the disk. Besides reducing the pressure to identify visually almost impossible. Theoretically possible to put GoodYear RunOnFlat on any machine. Created a huge nomenklatura type-sizes. In addition, new tires are compatible with standard discs. As for maintainability, the company GoodYear recommends to use the services of specialized services. In principle, this tire will be repaired in any tire. But the quality assurance work will not give. Now the fun part - the price. The average cost of new items at 25-30% higher. In fact, the purchase of four tires RunOnFlat equal to the purchase of five classic tires. 6-2006 Maxim Photo by Sergey Egorov Cross