RunOnFlat Keeps rolling when flat
TPMS
TPMS stands for Tire Pressure Monitoring System, an advanced tire monitoring system that is recommended for all cars, but an absolute requirement for RunOnFlat tires. After all, without an on-board monitoring system for RunOnFlat tires, you wouldn't even know that you'd had a puncture and your tire required servicing. That is why RunOnFlat tires should only be fitted on cars that carries a TPMS system.
Indirect or direct TPMS
There are two different kinds of TPMS system: indirect TPMS systems do not measure air pressure directly from the tire, but calculate it on the basis of ABS/ESP signals. As there is no need for additional sensors, this solution is highly cost-effective while providing a basic and functional monitoring system. The disadvantage is that the system isn't very accurate. Direct systems employ sensors on the tire valves that transmit a radio signal to the car's bodywork. This highly accurate and reliable system also keeps track of tire temperatures while giving you the most detailed information on your tires' air pressure.