Australian Legality and Compliance

Retread tyres are legal on Australian passenger cars only if made to Australian Standard AS 1973 and correctly marked — but passenger-car retreads have all but vanished.

Stretched tyres are not legal in Australia — a tyre must sit within its approved rim-width range. Here’s why they fail roadworthy, risk a defect notice and cut safety.

You can legally mix tyre brands front and rear in Australia if each axle is a matched pair — but never on the same axle. AWD and 4WD need all four matched.

Yes—you can run different tyre sizes front and rear in Australia if each axle is a matched pair and the fitment meets VSB 14 limits and the placard.

Tyres below your placard load rating make your car un-roadworthy in Australia. Here’s the defect, fine, blowout and insurance risk—and how to check.

Changing wheel size doesn’t automatically void car insurance in Australia, but failing to declare it can. Here’s how to keep your cover valid.

Yes—aftermarket wheels are a modification you must declare to your insurer in Australia. Here’s when, how, and what happens if you don’t tell them.

True beadlock wheels aren’t ADR-approved for sealed roads in Australia and can be defected and fined. They’re fine off-road; simulated beadlocks are road-legal.

Towing in Australia? Learn how tyre load ratings, GVM and GCM work together, why your placard load index is the legal floor, and how to tow safely.