How does heat affect a motorcycle rider's ability to ride safely on a long trip in NSW?

1. Heat has no effect on riding ability if the rider is physically fit
2. Heat increases alertness; warm-weather riding is safer than cold-weather riding
3. Heat and dehydration accelerate fatigue and impair concentration; riders should hydrate regularly, take breaks, and wear appropriate gear
4. Wearing minimal clothing in the heat is safer because it prevents heat stress from impairing judgement