A photograph shows only the visible surface
A listing photograph can show tread, model and obvious damage. It cannot reliably establish whether a tyre ran underinflated, suffered a severe impact or has internal damage. Do not treat looks good as a technical inspection report. The uncertainty particularly concerns problems that may remain invisible on a carefully cleaned exterior.
Ask about origin, the previous vehicle, mileage and reason for sale. Invoices and documented checks can make the account more traceable, but do not eliminate every unknown influence. An inconsistent or unexplained history is a sound reason to stop considering an offer.
Check complete markings and dates
Request the full size and version marking, along with the manufacturing date. Two apparently similar tyres may belong to different generations or carry different suffixes. Check each individually rather than assuming one photograph represents the entire set. A matching dimension is still only part of suitability for your vehicle.
The date is not a universal expiry date. It does help assess the remaining sensible period of use and any special requirements. Certain trailer applications, for example, have specific age conditions. A low price quickly loses its appeal if replacement is needed again soon.
Measure more than one point
One reading in a deep groove does not describe the whole wear pattern. Locations around the circumference and across the width may differ. Obtain a professional assessment and a clear record of the measurements. Meeting a legal minimum and making a sensible replacement purchase are not the same question.
Be alert to a seller quoting only the best location. A tyre with little usable depth remaining can become more expensive than a new set once fitting is included. Do not rely on a casually estimated remaining mileage without a defensible basis.
Previous repairs need explanation
Ask specifically about repairs. Continued suitability depends on the damage, repair method and manufacturer requirements. A statement that it was patched once is not a sufficient description. An exterior photograph cannot replace assessment of the inside either.
Do not undertake a makeshift repair merely to make a cheap offer usable. Suitability is a question for a qualified business. If the necessary assessment cannot be arranged before purchase, the uncertainty remains part of the offer and should not be hidden behind an optimistic price.
Compare the total with a new alternative
Add purchase, transport, inspection and fitting. Compare that with a new technically suitable offer containing equivalent services. The difference may be much smaller than expected. Include the inconvenience if the used set fails inspection or needs early replacement.
A serious comparison does not have to end with buying used. If history or condition remains unclear, a suitable new set is the more defensible option. The objective is a reliable basis for the vehicle's tyres, rather than finding reasons to justify an apparent bargain. Retain the inspection and purchase records whichever route you choose.
