Tyres are one an essential component in road safety. It primarily supports the vehicle, transfer brake forces to the road, sets the direction for travel and absorbs road shocks. Therefore, its lifespan depends on the conditions it was used and its contact to the ground.
How to determine tyre Labels
To increase environmental and economic efficiency, as well as safety, a particular regulation is set to label tyres in Brisbane. This labelling aids consumers in making smarter choices when purchasing tyres. However, driver behaviour also contributes to the actual performance of the tyre. There are three criteria described in the label: Fuel Consumption, Wet Grip and External Rolling noise. Fuel consumption determines how a particular tyre contributes to CO2 emissions and how it affects fuel consumption. Wet grip label determines the tyre’s wet brake performance. External rolling noise determines the noise level outside the vehicle, not the noise a driver perceives when inside the vehicle. It is expressed in decibel.
How to read markings on tyre
The symbols and numbers on the sidewall of the tyre apart from the brand name concern the specifications of the tyre, like sidewall height, width, tread pattern and diameter.
For example: 225/55 R 17 97 W translates to width in diameter expressed in mm (225 mm), tyre aspect ratio or sidewall height vs tread width in percentage (55%), internal construction of the tyre (in this case, R means ‘radial’), diameter of the tyre expressed in inches (17 inches), load index expressed in kilograms, which indicates maximum load the tyre is able to carry (97 kilograms), and speed rating (W). The speed rating indicates maximum speed a tyre can safely accommodate. In this case, W stands for 270 km/h.
How to determine the right tyre for certain road conditions
Tyres in Brisbane are classified into 3: winter tyres, summer tyres and all-season tyres. In summer, high temperature tends to flatten out tyres on the asphalt and making vehicle handling more difficult. Summer tyres counter this phenomenon by being built in a material that withstands hot temperature without flattening out. Winter tyres offer excellent traction, more grip and safer braking during the winter season. All-season tyres are a compromise between summer tyres and winter tyres, a cost effective solution so consumers no longer need to spend on 2 sets of tyres.
How to decide on changing tyres
A tyre should be in good condition before hitting the road, primarily for safety reasons. When the tyre is punctured or damaged, it obviously needs to be replaced. However, there are also other tell signs that a tyre needs to be replaced. When the tyre has reached its legal wear limit, when the tyres display signs of ageing, and when the tyres show abnormal wear. Since driver behaviour is a big factor, it is difficult to decide a tyres lifespan. The date of manufacture is not a factor as well. Lifespan is affected by factors such as usage, storage, weather conditions, speed, load, maintenance and inflation pressure. Abnormal wear can be attributed to unsuitable tyre pressure, transmission problem, misalignment or suspension problem. Get your tyres check if you notice abnormal tread wear in patches usually in the centre or shoulders.