The Australian Standard, AS/NZS 1927 Pedal Bicycles- Safety requirements, defines a bicycle as . . . a two wheeled pedal vehicle that is either solely human-powered or is power assisted by an engine having a power output not exceeding 0.2kW
State and territory regulations may vary slightly, but are in agreement about the power level and the need
for primary propulsion to be by human power.
State & Territory Governments of Australia have reference to Power-Assisted Bicycle's within their transport departments website.
All indicate the requirement that maximum power output must be less than 200Watts.