Part-Worn vs New Tyres: Which Should You Buy?

You pay more per millimetre of tread

A new tyre starts life with around 8mm of tread. A part-worn tyre, by law, must have at least 2mm, and many are sold close to that. That means a part-worn tyre may have only a quarter of the usable tread of a new one, yet often costs more than a quarter of the price. Measured by cost per millimetre of tread, part-worns are frequently the more expensive option.

The hidden risks of used tyres

• Unknown history: previous impacts, punctures, or kerbing may be hidden
• Internal damage that is not visible from the outside
• Uneven or irregular wear from the previous vehicle
• Age: rubber degrades over time even with plenty of tread left
• Improperly repaired punctures that are unsafe

What the law requires

Part-worn tyres are legal to sell in the UK, but they must meet strict conditions: a minimum of 2mm tread, no dangerous damage, and they must be marked PART-WORN clearly and permanently. Many tyres sold do not meet these standards, so buying part-worn means trusting the seller to have inspected and graded them correctly.

The verdict

For most drivers, new tyres offer better value, longer life, and complete peace of mind about safety. You know exactly what you are getting, the full tread, a clean history, and a manufacturer warranty. When you factor in the longer replacement interval, new tyres usually cost less per mile.

A mobile fitter can supply and fit quality new tyres, from budget to premium, at your home or workplace, with a clear all-inclusive price. Call or WhatsApp with your tyre size for a quote.