Tyres are the single most important safety component on your car — the only thing connecting it to the road. So when is it actually time to replace them? It's not just about tread depth.
The legal limit: 1.6mm
UK law requires at least 1.6mm of tread across the central three-quarters of the tyre, around its full circumference. Below that is an instant fail and a £2,500 fine per tyre — plus three points on your licence each.
The safe limit: 3mm
Independent testing repeatedly shows that wet-weather braking deteriorates sharply below 3mm. We recommend replacing at this point — typically around 20,000–30,000 miles of normal driving.
Age matters too
Even with good tread, rubber hardens over time. Most manufacturers recommend replacing tyres after 6 years, regardless of mileage. Check the four-digit DOT code on the sidewall — '2820' means week 28 of 2020.
Visual warning signs
Cracks in the sidewall, bulges, embedded objects, uneven wear patterns or vibration through the steering wheel all suggest it's time to act. Pop in for a free tyre check any time.
Premium tyres from £45, fitted while you wait — including balancing, valve and disposal. Same-day service on most sizes.