Small Cut in Tyre Tread: Is It Dangerous?

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Even minor damage to your tyres can raise safety concerns — but not every cut is cause for alarm. In this guide, we explain what a small cut in your tyre tread means, when it’s safe to keep driving, and the signs that indicate it’s time for a tyre replacement.

The more you use your vehicle, the higher the rate of wear and tear. When it comes to vehicle maintenance and monitoring the state and suitability of the vehicle in terms of safety and performance, it’s important to know the difference between regular wear and tear and excessive damage. 

One particularly prominent area to focus on, when assessing wear and tear, is the tyres. 

This is because the tyres are the only part of the vehicle that makes contact with the ground / road surface and, as a result, are most susceptible to damage.

So, with that in mind, what do different levels of damage mean and what impact does a crack in the outer tread of the tyre have?

Common Signs of Wear and Tear on Tyres

The most obvious sign of wear and tear on a tyre is a worn tread. The tyre tread on a brand new tyre tends to sit at around 8mm in depth – wearing down gradually until it reaches the legal minimum limit. The legal limit for tyre tread is 1.6mm - any lower than this is considered dangerous and illegal.

Another sign of wear and tear is cracks on the surface of the tyre. However, what matters here is the position and location of the crack or damage. 

A Crack in the Tyre Tread: Dangerous?

Contrary to popular belief, a small cut or crack in the tyre tread is not considered particularly dangerous. Rather, this is an example of wear and tear that is to be expected. 

The tread of the tyre is a thick rim of rubber, that wears down gradually and with continued use. Its purpose is to soak up any outward damage to protect the structural integrity of the tyre and to keep the vehicle safely on the road. 

While any kind of crack or cut in this rubber tread should be monitored, it does not immediately equate to a tyre which is dangerous and needs to be replaced.

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When is a Cracked Tyre Dangerous?

The same is not true of a crack in tyre sidewall – that is, the part of the tyre that sits between the inside rim and the outer tread layer. If this sidewall becomes damaged or cracked in any way, it poses a risk to the safety and stability of the tyre, meaning that the tyre needs to be replaced as soon as possible. 

In short, while a cut or crack in the tyre tread is a regular sign of wear and tear, damage to other parts of the tyre can lead to significant and lasting damage. 

If you notice damage to any part of your tyre and aren’t sure how to proceed, schedule a service for your vehicle and follow the advice of your local mechanic. If you find that you need to replace tyres that have become worn or excessively damaged, Tyres.co.uk boasts an extensive collection of tyres for all vehicle types and driver preferences.

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