6.2.13 RUN-FLAT tires
Run-flat technology is used in the production of expensive car tires. These tires have reinforced sidewalls. The availability of durable inserts in the sidewall of the tire made out of rubber of a special composition allows it to withstand the weight of the car even in a deflated state.
On a flat Run-flat tire, one can drive about 80 km in case if the car is fully loaded. In case if there is only a driver in the car, then you can drive on a flat tire for about 150 km (at a speed of no more than 80 km/h). The ability to drive at least 80 km on a flat tire without affecting the wheel and suspension allows drivers to avoid difficult and unsafe wheel changes in traffic. Engineers managed to ensure that this type of tire can be reused after vulcanization.
Figure 6.26 Tires with Run-flat technology.
Note
For safety reasons, run-flat tires can only be installed on vehicles with electronic stability control and tire pressure sensors that warn of changes in air pressure in them.
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