Today, most of the luxury car manufacturers in the world, including BMW, Benz, etc., use this type of tires for their cars so that other drivers don’t have to worry about getting a flat tire and stopping on the side of highways and busy and dangerous roads.
Ronflat tires are mainly divided into three groups:
Self-supported tires
• Self-repair tires
Auxiliary supported tires
– In the first type or self-supporting, the sidewalls of the tire are reinforced to have higher strength. This higher strength makes the tire not sleep too much even when the air is empty and the car maintains its ability to move with limitations.
– In the second type or self-healing tires, the tires have an inner liner that reacts immediately if a small hole is created in the tire. The way this system works is similar to anti-puncture sprays. Self-healing tires are not very common and are only produced in limited sizes.
– In the third type, which is called auxiliary tires, a ring inside the tire is used. This ring is usually made of very strong plastic, but other materials may also be used in its construction. If the tire is deflated, this ring gives enough strength to the tire wall and supports it.
Since run-flat tires also move when deflated, the driver may not notice a flat tire. For this reason, a tire pressure warning system (TPMS) must be installed in cars equipped with this tire to show the driver any change in tire pressure.
Among the benefits of Ranfelt lasitics, the following can be mentioned
• Driving in flat condition (no wind): Undoubtedly, this is the first and most important strength of a flat tire compared to a normal tire. In any case, the run flat tire will take you at least to the place where you can change the car tire without any wind. The only thing that the driver should pay attention to is the maximum speed of the car. This maximum permissible speed in the absence of wind is usually written in the user manual of the car.
• Higher stability in the event of a flat tire: Since the flat tires have stronger walls to move in the flat condition, so if the tire bursts, there is less impact on the stability of the car and the car will still be steerable. The controllability of these tires in flat condition is no different from the normal condition, and this is a very important positive point in terms of road safety.
• Car weight reduction: If a car is equipped with run-flat tires, there is no need for a spare tire anymore, and this means that an extra load is removed from the car. The effect of this extra load, which is not small by the way, can be seen on the car’s fuel consumption.