In addition to reduced visibility, what is a risk associated with riding in rain?

Riding in rain poses several risks, one of which is a significant reduction in braking performance. When wet, road surfaces can become slippery, particularly if debris, oil, or other substances mix with the water. This decreased traction can lead to longer stopping distances, making it more difficult for a rider to bring their motorcycle to a halt quickly and safely. Additionally, brake components may become less effective when wet, particularly drum brakes or if the motorcycle has not been properly serviced.

The other options are less relevant to the immediate risks of riding in the rain. Increased fuel consumption may occur under various riding conditions but is not directly tied to the rain's effects on handling. An increase in engine temperature is generally not a concern for rain riding; in fact, rain may help cool the engine. Lastly, a higher chance of battery failure is usually dependent on factors like age and condition of the battery rather than external weather conditions like rain.