A tyre’s adhesion to the road surface depends on what?

Your answer is fully correct because a tyre’s adhesion to the road surface depends on all three factors: tyre temperature, road conditions, and weather conditions.

In German traffic rules, adhesion is crucial for vehicle safety, affecting braking, steering, and overall control. When the tyre temperature is optimal, the rubber becomes more flexible, improving grip. Road conditions, such as the quality and texture of the surface, directly impact how well tyres can grip. Weather conditions, including rain, snow, or ice, can reduce adhesion by making the surface slippery. Understanding that all these factors together influence tyre adhesion helps drivers adapt their speed and driving style for safe handling in different situations.