Explain why do bus tires can greatly increase when traveling over along distance at high speed?

When a bus covers long distances at high speeds, the tires heat up as the rubber expands with each revolution. This regular flexing generates internal friction, which produces heat within the tyre. As the temperature rises, the air trapped within expands and causes the tyre pressure to rise considerably. High load, long journey time, and road resistance increase stress, pushing temperatures even higher. If not monitored, this can accelerate tyre wear or reduce performance. These factors highlight why proper inflation and maintenance are essential for long-route operations, as seen in the Truck & Bus Bias tyres offered by Birla Tyre.