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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.

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.

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.

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.

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.

Second-hand tyres are legal to buy and fit in Australia if they’re roadworthy: 1.5mm tread, no damage, correct size. Here’s what’s legal, safe and what to avoid.

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.