In most states, quad bikes are not considered roadworthy and are therefore not permitted on public roads. This is because quad bikes are typically designed for off-road use and do not meet the safety standards required for road use. Additionally, quad bikes are not as stable as other vehicles and have a higher risk of tipping over, making them potentially hazardous on public roads.
However, some states do allow quad bikes to be ridden on public roads under certain conditions. For example, in Queensland, quad bikes can be registered and used on public roads if they meet specific safety requirements, such as having a fully enclosed cabin, a roll cage, and seatbelts. Additionally, riders must wear a helmet and hold a valid driver's license.
It is important to note that even in states where quad bikes are permitted on public roads, there may be restrictions on where they can be ridden. For example, in some states, quad bikes may only be ridden on designated trails or roads.
Overall, the legality of riding quad bikes on public roads in Australia varies from state to state. It is important to check the local laws and regulations in the specific state you are interested in before riding a quad bike on public roads.