Guide To Understanding Tyre Tread Wear

Tyre tread depth is one of the simplest ways to determine if your tyres need to be replaced. Although it can be challenging to measure, the minimum permissible tread depth in the UK is 1.6 mm. To make it easier to determine wear and tear, manufacturers like Goodyear Tyres have incorporated a tyre tread wear indicator (TWI) into the grooves of their products. It is time to replace the tyre when the tread reaches the TWI level of wear. 

Uneven tyre wear

It is crucial to keep in mind that not all tyre tread wear is equal, or spread evenly across all of your car’s tyres, though. Uneven wear is common and can happen from any of the reasons from aggressive driving style to poor road condition to a mechanical issue with the car, such as a warped wheel or an issue with the suspension. So you should always examine all four of your tyres when doing a tyre tread wear inspection. 

Here are a few other types of tyre wear that you should keep in mind.

1. Quick wear

Despite being made to live a minimum of 20,000 miles, the latest tyres have been known to wear rapidly over a short period. It can be either because of high-speed driving, overloading the car, having a wheel alignment problem or just driving on uneven roads.

2. Unusual quick wear

Unusual quick wear is visible because it happens on the side of the tyre. It can be the result of a problem with the wheel alignment, the car’s suspension, or driving on sloped or grooved roads. This can be very hazardous as it can result in a severe puncture. 

3. Slanted wear 

Slanted wear happens when the tread on one side of the tyre is worn down a bit more than the opposite side. Wheel alignment is the real reason for this, however, misaligned or faulty suspension of your car can also be the reason. 

4. Rounded wear

When the edges of a tyre are worn down a bit more than the middle part of the tyre, this is called rounded wear. This can be the result when a car is overloaded or is driven on sloped roads. 

Given that the performance of a tyre is calculated by the size of its contact patch (the area of contact between the tyre rubber and the road), you can safely guess that rounded wear adversely affects the handling and safety of your car if you have it.

5. Centre wear

Centre wear is the complete opposite of rounded wear (and is exactly as its name suggests). It is quite similar and is regularly happened by over-inflating the tyre, high-speed driving, or having a wheel alignment problem.

Localised tyre damage 

Every trip, a tyre spins thousands of times; therefore, damage to the rubber surfaces typically affects the entire tyre. But occasionally, damage to the tyre may be much more localised and difficult for the driver to see and evaluate. A few of the things to watch out for are as follows:

  • Foot damage

The tread pattern of a tyre consists of elevated areas and grooves on the surface. If any of the patterns are broken, damaged, or otherwise changed, this might affect a tyre’s performance (especially when wet or travelling at greater speeds) and increase the risk of blowouts and punctures.

  • Cut on tread 

A particularly specific type of tread damage known as a tread cut happens when a hard or sharp object strikes a car, usually leaving a straight or jagged cut in the tyre's tread.

  • Flat spot

This is the point at which the tread of one tyre is noticeably more worn down than the rest of the tyre. This may happen if you brake too forcefully or leave your car in one place for an extended period.

  • Tread aggressions (Cut chip)

It has been reported that little shards or rubber fragments have come away from the tyre's tread. This kind of damage is typically caused by driving over uneven terrain or running into sharp objects.

  • Tread aggressions (Scaling) 

When a tyre appears to have been worn away in large, flat sections, it is said to have scaled. This condition can happen when travelling quickly or on uneven terrain.

  • Tearing at the tread

 Tread tearing is the same as tread cuts in that it occurs when there is a flaw in the tyre and the surface tears away. Compared to brand-new tyres from the top manufacturers in the world, re-treaded tyres have a higher chance of experiencing this issue.

In summary

It should be mentioned at this point that the running surface of Car tyres Southampton experiences the majority of the tyre wear that we have described. But a tyre's sidewall - both the inner and outer - can potentially sustain damage. This may affect the car's handling and stability and increase the risk of blowouts and punctures.

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