What results in specific risks to motorcyclists?

The selected combination of choices accurately reflects the specific risks faced by motorcyclists, which is important for road safety.

1. Riding with the visor open poses risks as it can impair visibility and increase susceptibility to distractions or debris.
2. Riding in heavy rain affects traction and visibility, making it more difficult to control the motorcycle and increasing the likelihood of accidents.
3. Changes in the road surfacing, such as potholes or slippery conditions, can significantly impact a motorcyclist's stability and control, heightening the risk of falls.

In Germany, traffic regulations emphasize the need for motorcyclists to be aware of these risks and take necessary precautions, reflecting the importance of safety gear and riding conditions. Understanding these aspects helps in making informed decisions that enhance safety on the road.