What are the rules about reflectors on a bike?
According to the Road Traffic (Bicycles) Regulations 2002, a bicycle must have a red reflector of at least 38mm in diameter affixed at all times to the rear of the bike, mounted at a height not less than 330mm or higher than 1m. If a bicycle is ridden in the hours between sunset and sunrise it must also have two yellow reflectors fitted to each wheel and yellow reflectors on the front and back of both pedals, as per the Australian Standard AS 2142/1978 (Specification for Reflectors for Pedal Bicycles). If you are unsure if your bicycle complies with the standards, see your local bicycle dealer for assistance.