Key Signs Your Tyres Need Replacing
Your tyres are the only part of your car in contact with the road, making them the single most important safety component on your vehicle. Understanding when to replace your tyres could mean the difference between a safe stop and a serious accident on UK roads.
The 1.6mm Legal Minimum
In the UK, the legal minimum tyre tread depth is 1.6mm across the central three-quarters of the tyre, around the entire circumference. Driving below this threshold risks a £2,500 fine and 3 penalty points per tyre. However, many safety experts recommend replacing tyres at 3mm because wet-weather braking distance increases dramatically below this point.
The Coin Test
Insert a 20p coin into your tyre's main tread groove. If the outer band of the coin is hidden, your tread is above 1.6mm. If the band is visible, your tyres may be below the legal limit and should be checked by a professional immediately.
Other Signs It Is Time for New Tyres
- Age over 5–7 years: Rubber degrades over time even without heavy use. Check the DOT code on your sidewall to find the manufacturing date.
- Visible cracks or bulges: Sidewall cracking or bulging indicates structural damage and the tyre must be replaced immediately.
- Persistent punctures: A tyre that keeps losing pressure may have a slow leak that cannot be repaired.
- Vibration or pulling: These symptoms can indicate tyre damage or balancing issues.
Book a Mobile Tyre Inspection in Yorkshire or Scotland
If you are unsure whether your tyres need replacing, call Saltire Mobile Tyres. Our technicians can come to you, inspect your tyres and give you an honest recommendation — no pressure, no upsell.