Changing Your Tyre:
Your tyres may need changing when you can notice deterioration in performance.
The fact that tyres wear gradually can make it difficult to identify the reduction in performance, so it's best to have them checked regularly, and preferably by an expert. As the driver, it is your responsibility to ensure that the tread on your tyres is not worn beyond the legal minimum limit of 1.6mm. To make this easier to identify, tyre manufacturers mould tread wear indicators (T.W.I) into the design of the tyre's tread pattern, usually at a tread level of 1.6mm. As soon as the tread is worn to the height of the tread wear indicator, the tyre has reached the legal minimum tread depth and you should replace the tyre as soon as possible. You should also be aware that there are many different reasons for tyre wear.
Your tyres don't just get worn through age and use, but through emergency braking, under-inflation or over-inflation. And if your wheels are misaligned, one edge of the tyres can wear more rapidly than the other edge. At Arbury, we recommend a weekly walk around the car to check the tread, look for bulges or wear and to check tyre pressures every time you fill the tank.