For any bike ride you must wear high visibility clothing and/or reflectors so that you can be easily seen by motorists.
If you're going for very long rides, you may want to carry a spare tyre as well as a puncture kit, as the next town could be a long, long walk away.
Please note: items appearing on this list are a suggestion & not exhaustive. Actual items required may vary depending on your specific requirements.
Extras to Consider