Tread Depth

Tyre tread is designed to ensure that tyres give good grip to the road. This also increases road holding, driver control and resistance to aquaplaning. This is particularly important when driving in wet conditions as worn away tread can drastically affect grip and handling. For example, a tyre with the bare legal minimum of 1.6mm of tread will take 36.8% longer to stop than one with 3mm of tread.

It’s not just the safety of your tyres that tread depth affects either. Many insurance policies become void if your tyres are found to be illegal as they could be the cause of an accident. If you are caught driving on tyres with less than 1.6mm tread you will also face three points on your licence and being a fine of £2,500 for each tyre on your vehicle which is below the legal tread depth.

Here at Setyres we recommend that you check the tread on your tyres at least every four weeks and before commencing long journeys. The easiest way to measure the tread depth on your tyres is to use the 20p test. This consists of placing a 20p coin in to the tread grooves in at least three places around the tyre. If you can see any part of the outer band of the coin then your tyres are illegal, unsafe and need replacing.

As well as frequently checking your tyre tread, you should also keep your tyres inflated to the correct tyre pressures and clean your tyres effectively.

Take a look at this helpful video from TyreSafe for more guidance on tread depth.




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