Riding in the dark. Wear reflective clothing or strips to improve your visibility in the dark. These reflect light from the headlamps of other vehicles, making you visible from a longer distance. See Rules 113 to 116 for lighting requirements.
Advice, not law. This rule is not written in capitals, so breaking it is not an offence in itself — but it can still be used in evidence in court to establish liability. The rules that say MUST or MUST NOT are the ones backed by law.
5 theory test questions on this rule
From the DVSA revision question bank. These are not the questions asked in the real theory test. Each one shows the answer, the explanation, and our own note on why every other option is not it.