While the appeal of a lower price tag can be tempting, opting for part-worn tyres carries significant and often unseen dangers that far outweigh any potential savings.
One of the immediate concerns with part-worn tyres is their questionable legality and safety standards. In the UK, the sale of part-worn tyres is permitted under strict regulations, notably the Motor Vehicle Tyres (Safety) Regulations 1994 (as amended). However, these regulations are frequently ignored. Legally sold part-worns must have a minimum tread depth of 2mm across the breadth of the tyre and no cuts, bulges, or cord exposed (this is less than 0.5mm more than the legal limit). Crucially, they must also be permanently marked “PART-WORN” and conform to relevant British Standards. The reality, however, is that many part-worn tyres sold often fail to meet these essential requirements, leaving drivers unknowingly non-compliant and at risk.
Even if they conform, the inherent safety implications are profound. A tyre’s performance is directly linked to its tread depth and, very importantly, it’s structural integrity. A part-worn tyre, by definition, has already endured wear and tear. This means:
- Reduced Wet Weather Performance: Less tread means less ability to displace water, significantly increasing the risk of aquaplaning in wet conditions. This can lead to a complete loss of control, even at moderate speeds.
- Compromised Braking Distances: Worn tyres have a longer braking distance compared to new tyres, particularly on wet or slippery surfaces. In an emergency, those crucial extra metres can be the difference between a near miss and a serious collision.
- Uneven Wear and Handling Issues: If the part-worn tyre has experienced uneven wear from its previous use, fitting it to your vehicle can lead to unbalanced handling, excessive vibration, and premature wear on other components of your suspension and steering system.
- Hidden Damage and Structural Weakness: We would argue that this is the biggest compromise as you cannot see damage to a tyre unless it is x-rayed. The history of a part-worn tyre is often unknown. It may have been driven under-inflated, overloaded, or involved in an impact, leading to internal structural damage that is not visible externally. This hidden damage can lead to sudden and catastrophic tyre failure, such as a blowout, at any time.
In our opinion, the economic argument for part-worn tyres often falls flat in the long run. While initially sometimes cheaper, their reduced lifespan means they will need replacing sooner than new tyres. This can lead to more frequent visits to replace your tyres, ultimately negating any initial savings and potentially costing more over time making them an entirely false economy.
In conclusion, we think that even if the money saving is appealing, the trade-off in terms of safety is simply not worth the risk. For peace of mind and optimal road safety, investing in new, high-quality tyres that meet all relevant safety standards is always the most responsible and ultimately most economical choice. Your life, and the lives of others on the road, depend on it.
For more information, check out this government website:
https://movingon.blog.gov.uk/2022/12/07/buying-part-worn-tyres-what-operators-need-to-know/





