A clean set of used alloys can save hundreds of dollars over new. But a wheel is a structural, safety-critical part, and the damage that matters most is often the hardest to see. Here’s exactly what to inspect on second-hand wheels before you hand over any money — the checks a good tyre shop would make. This is the final guide in our wheels series, pulling together everything from fitment to repair.

Do the fitment specs actually match your car?

A beautiful wheel that doesn’t fit is worthless. Confirm every number before condition even matters:

Spec	What to check
Bolt pattern (PCD)	Must match your vehicle exactly — no “close enough”
Offset (ET)	Stamped on the wheel; wrong offset causes guard or suspension rubbing
Centre bore	Smaller than your hub won’t fit; larger can be used with hub-centric rings
Load rating	Must meet or exceed your vehicle’s requirement, especially on utes and 4WDs
Diameter & width	Suit your tyre size and brake clearance

Get these right first — the detail is in bolt pattern and PCD explained and wheel offset and backspacing. Brake clearance matters too, especially if you’re downsizing; see wheel sizes and brake clearance.

How do you check for cracks and bends?

This is where safety lives. Use an angled torch and inspect the spoke bases, the lug-nut holes and the inner barrel — the hidden areas where cracks start. Any crack is an automatic rejection, no matter how small or how good the price. Welded repairs on alloy wheels are generally cosmetic only and should never be trusted on a structural crack, as covered in cracked alloy wheels: weld or replace.

For bends, run a finger around the inner and outer lip feeling for ridges or flat spots, and look down the rim edge-on. A bent rim causes vibration and slow air loss. Whether it’s repairable at all is covered in can bent alloy wheels be safely repaired — but a cheap used wheel that needs straightening often isn’t worth it.

Has the wheel been repaired or refinished to hide damage?

Sellers hide history. Look for weld marks or filler inside the barrel, colour mismatches, overspray inside the rim, freshly painted lug holes or new paint around the valve stem — all signs the wheel has been repaired or refinished, possibly to disguise damage. European wheel maker RIAL’s own advice on closely inspecting used alloy wheels stresses checking for exactly this kind of concealed repair. Ask directly whether the wheels have been straightened or repaired, and ask for documentation.

Is kerb rash just cosmetic?

Light kerb rash that stays within the clear coat is acceptable and fixable. Rash that exposes bare aluminium is a bigger deal — the protective coating is gone, so the metal will corrode, particularly in coastal Australia. Repair options are in how to fix kerb rash on an alloy wheel.

Will the wheels actually run true?

A wheel can look perfect and still refuse to balance. If you can, have each wheel balanced before you commit — excessive lateral or radial run-out means it won’t balance smoothly and will vibrate at highway speed. Also check the lug seats (the tapered faces the nuts clamp against) for wallowing or elongation, which can let wheel nuts loosen. On a matched set, confirm the casting or part numbers are identical across all four so you’re not buying one odd replacement wheel. The OEM Wheel Shop’s used-wheel inspection checklist puts the practical limit at run-out above roughly 0.030 inches (about 0.75mm) — past that a wheel won’t balance smoothly no matter how good it looks.

Are they genuine — and do they have TPMS?

If they’re sold as factory wheels, check the casting/part number and weight against the OEM spec; a big weight difference or missing stamps can signal a replica or counterfeit. Our guide to spotting a counterfeit wheel and the legality explainer are replica wheels safe cover the marks to look for. Finally, check whether the wheels include TPMS sensors or just bare valve holes — sensors are usually sold separately and you’ll need to budget for them, as explained in TPMS sensors and aftermarket wheels.

Frequently asked questions

Is it safe to buy wheels with a repaired crack?

No. Welding on an alloy wheel is cosmetic and cannot reliably restore a structural crack. A cracked wheel — repaired or not — should be rejected outright.

How do I know if a used wheel is bent?

Run a finger around the inner and outer lip feeling for flat spots or ridges, sight down the rim edge-on, and have it balanced. A bent rim shows up as vibration and slow air loss, and run-out that won’t balance out.

Can I use wheels with a different offset?

Only within a small safe range. Too far out causes guard rubbing; too far in risks fouling suspension or brakes. Match the offset to your vehicle and check with a fitter if it differs from standard.

Should I worry about where the wheels came from?

Yes. Wheels from salvage or insurance write-offs may have been on a crashed car and suffered impact damage you can’t see. Ask the seller why they’re selling and the history before buying.

Are second-hand wheels worth the saving?

They can be — a genuine, undamaged set that fits your car properly saves real money over new. But the saving disappears the moment you buy a wheel that needs straightening, won’t balance, or turns out to be a low-load-rating replica. The inspection is what separates a bargain from a liability, so never skip it to save time.

Bottom line: Match the fitment specs first, reject any crack outright, hunt for hidden bends and repairs, and balance the wheels to confirm they run true. A used set that passes all four checks is a genuine bargain; one that doesn’t is a safety risk, not a saving.

Wheel condition and legality standards vary — treat this as general guidance for 2026 and have any used wheel inspected and fitted by a licensed tyre and wheel specialist before road use.