What effect does incorrect tyre pressure have?

Incorrect tyre pressure can significantly affect vehicle safety and performance, which is why understanding its impact is crucial.

When tyre pressure is not within the recommended range, it impairs driving stability. This means that the vehicle may not handle properly, especially during turns or in adverse weather conditions. A stable vehicle is essential for safe driving, as it helps maintain control and avoid accidents.

Additionally, incorrect tyre pressure increases tyre wear. Under-inflated tyres, for instance, can experience more friction with the road, leading to faster deterioration. Over-inflated tyres may also suffer from uneven wear, which can shorten their lifespan and lead to sudden failures.

While extending reaction time is not directly relevant to tyre pressure, it's important to note that impaired driving stability can indirectly impact reaction times as a driver may need additional time to correct for instability.

Thus, options 1 and 2 reflect the immediate and clear consequences of incorrect tyre pressure, aligning with German traffic laws that emphasize vehicle maintenance for safety on the road.