5 Signs You Need New Tyres
Signs of tyre wear to look out for include:
Bulges or Blisters – The most obvious signs that your tyres require an urgent replacement include cracks in the tyre sidewall, excessive vibrations whilst driving, and bulges or blisters on the tyre.
Cracks in the Tyre Sidewall – A crack in the sidewall of a tyre is typically due to the ageing process. Over time, as tyres age, the rubber loses flexibility and begins to harden. Superficial cracks start to form, and whilst usually not too problematic at first, the longer you drive on them, the more serious the damage will become. Tyres with multiple large cracks are more at risk of a blowout, which can be extremely dangerous.
Excessive Vibrations While Driving – Whilst there are many factors involved that could be causing excessive vibrations when driving, tyre problems are usually the main culprit. Wheel alignments can sometimes fix the problem, but first we suggest checking the inflation in your tyres. Over-inflated tyres can cause the tyre to take on more of a rounded base shape, reducing the amount of tyre-to-road contact.
Inadequate Inflation – Under-inflated tyres are also an issue, as the tyre is more at risk of wearing unevenly on the outside edges. An under-inflated tyre also forces your vehicle to work harder against the tyre resistance when rolling, ultimately leading to an overheated tyre. More often than not, the tyre body will separate from the tyre tread, causing a blowout.
Depth of the Tyre Tread – Additional signs of poor tyres that may be less obvious include the depth of your tyre tread and air leaks. It is essential to check your tyre tread at least fortnightly to ensure you have an adequate tread thickness and are not at risk of driving on bald tyres.
HOW TO CHECK THE WEAR ON YOUR TYRES
There are a number of ways to check the wear and remaining tread on your tyres. The following are some of the most favoured and frequently used methods.
20C COIN
Most of us have spare change in the car. To check the tyre tread depth using a 20c coin, place the coin’s edge in between the grooves of the tyre tread, ensuring the number 20 on the coin is upright furthest away from the tyre. If the tyre tread does not meet or go above the platypus bill, you will likely only have 3mm or less of tyre tread remaining. If your tyres appear to have 3mm or less, you need to arrange a new set of tyres stat!
IN-BUILT TREAD WEAR INDICATOR
Tyres have in-built tread wear indicators on the outside wall of the tyre, and in between the grooves of the tyre tread. The outside indicators are often arrows or small lines depending on the tyre brand, the four indicators are spaced equally around the tyre, and you will notice that when the tyre tread wears down, it begins to align with these indicators. When this occurs, you will need to arrange for the tyres to be replaced, as their tread life is almost complete.
The indicators between the tread grooves are usually raised notches, and the same rule applies to those. When the tyre tread wears down and begins to align with these indicators, you will need to arrange for the tyres to be replaced.
TYRE DEPTH INDICATOR GAUGE
The most accurate way to check your tyre tread and know whether it is time to arrange a new set of tyres is by purchasing a Tyre Tread Gauge. These can be bought from most trade and automotive supply stores. This is a very simple tool and fits in your pocket or car bag easily.
You can check your own tyres with these great little gadgets in three easy steps.Pull out the measuring probe until it is fully extended, place the end into the base of the tread groove and push down, allowing it to retract naturally until the outer of the probe presses against the top of the tyre tread. Repeat this for each tyre.Hot Tip – When measuring, measure around the whole tyre circumference to check that all sides of the tread are wearing evenly.You will also want to ensure that when you are measuring, you are placing the gauge against the base of the groove and not on a raised indicator notch.
CHECKING THE CONDITION OF THE SIDEWALL
It is important to check all tyre sidewalls regularly. We may not notice the extensive elements our tyres are exposed to daily. Jagged potholes, rocks, sticks, gutters, and other miscellaneous items can damage your tyre immediately or over time.
We recommend doing a thorough tyre check every 2-3 weeks. It helps to maintain clean tyres as dirt and mud build-up can hide possible issues. It is straightforward to check the sidewall of each tyre by completing a thorough visual inspection as well as running your hands along the rubber to feel for any noticeable imperfections, bulges, or cracks.
MECHANIC INSPECTION
If you are not confident in checking your tyre tread, many mechanics will happily do it free of charge if you pop down to their workshop. Some mechanics will quickly check by sight or touch, and others may offer you a fancier option if you book an appointment, like electronic tyre wear tester machinery.
Comments