There are no mandatory items that the racers must carry with them at all times.
Some parts of the course might pass through vehicular traffic areas. Obeying the traffic rules and passing the roads safely are the racers' own responsibility.
Bib numbers must always be worn and be visible from the front.
October 6th is a day to be pretty hot. The average temperature in October for the past year is 16⁰c but current weather forecast at the link below should be followed.