Replacement tyre size, load and approval checklist

Tyres with the same rim diameter can differ in width, profile, load and speed capability. The vehicle’s approved combination also affects clearance, instruments and safety systems.

What the official sources establish

JPJ publishes Component Type Approval information and an official route concerning alternative tyre sizes. The owner’s manual or vehicle placard remains the starting point for the manufacturer’s specified size, load and pressure.

What to check

• Size, load index, speed symbol and type meet the vehicle’s documented requirement.
• Manufacture code, damage, repairs and storage condition are inspected before fitment.
• Component approval markings and seller or installer identity are traceable.
• Alternative dimensions have the required clearance and official approval where applicable.

A practical way to decide

1. Copy tyre and pressure specifications from the placard and owner’s manual.
2. Compare exact markings, not a shop’s shorthand description.
3. Ask for the manufacturing date and inspect all four tyres before installation.
4. Record rotation, alignment, pressures and invoice details after fitting.

A useful decision rule

Use the maker-specified combination unless there is a documented reason and lawful route to change it. Appearance should not override load capacity, clearance or approval.

Common mistake to avoid

Do not fit a lower load rating or assume a very old unused tyre is equivalent to a recent one. Inspect age and condition and seek professional advice on any damage or repair.

Keep the evidence

Save the dated product page, quotation or terms you relied on, together with receipts, model or registration numbers and written messages. Public pages and commercial terms can change; recheck the linked official sources before committing money or making a complaint.