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Read moreHow to Check Your Tyre Tread (And Why It Matters for Your Safety)
Your tyres are the only point of contact between your vehicle and the road, so keeping them in good condition is essential for safety, performance, and fuel efficiency. One of the most important things you can check regularly is your tyre tread depth. Worn tyres can reduce grip, increase stopping distances, and make driving in wet conditions dangerous.
At A1 Precision Automotive , we’re committed to helping you stay safe on the road. Here’s a simple guide on how to check your tyre tread and when it’s time for a replacement.
Why Tyre Tread Is So Important
Tyre tread plays a critical role in maintaining traction, especially in wet conditions. The grooves in your tyres are designed to channel water away from the contact patch, reducing the risk of aquaplaning.
When your tread becomes too shallow:
- Braking distances increase
- Handling and cornering become less stable
- Wet weather driving becomes significantly more dangerous
In Australia, the legal minimum tread depth is 1.5mm, but safety experts recommend replacing tyres well before reaching this limit.
Easy Ways to Check Your Tyre Tread
The Tread Wear Indicator (TWI)
Most modern tyres have built-in tread wear indicators. These are small raised bars located within the grooves of the tyre. How to check:
- Look for small markers on the tyre sidewall (often marked “TWI”)
- Find the corresponding bar inside the tread groove
- If the tread is level with the indicator, your tyre is worn out and needs replacing
The 20-Cent Coin Test (Aussie Method)
This is a quick and easy method you can do at home. Steps:
- Insert a 20-cent coin into the tread grooves
- If the tread doesn’t reach the platypus bill, your tyres may be too worn
It’s not as precise as a gauge, but it’s a good quick check.
Use a Tread Depth Gauge
For the most accurate reading, use a tread depth gauge. How to use:
- Insert the probe into the tyre groove
- Press the gauge flat against the tyre
- Read the measurement
If your tread is getting close to 2–3mm, it’s time to start planning a replacement.
Don’t Forget to Check All Tyres
Make sure you inspect:
- All four tyres
- The inner and outer edges (uneven wear can indicate alignment or suspension issues)
- Your spare tyre
Uneven tread wear can be a sign of underlying mechanical problems, which should be addressed early to avoid bigger repair costs.
Signs Your Tyres Need Replacing
In addition to low tread depth, look out for:
- Cracks or splits in the rubber
- Bulges or bubbles
- Vibrations while driving
- Poor grip in wet conditions
If you notice any of these, it’s best to have your tyres inspected by a professional.
Stay Safe with Regular Tyre Checks
Checking your tyre tread only takes a few minutes but can make a big difference in your safety on the road. Regular inspections also help extend the life of your tyres and improve your vehicle’s overall performance.
If you’re unsure about your tyre condition, the team at A1 Precision Automotive is here to help.
Need your tyres checked or replaced? Use our convenient online quote form at to get fast, reliable advice and pricing.
Have more questions about your tyres?
How often should I check my tyre tread?
It’s recommended to check your tyres at least once a month and before long trips.
What is the legal tread depth in Australia?
The minimum legal tread depth is 1.5mm across the entire tyre.
Can I drive with uneven tyre wear?
Uneven wear can indicate issues like poor alignment or suspension problems. It’s best to have it inspected as soon as possible.
Do worn tyres affect fuel consumption?
Yes, worn or under inflated tyres can increase rolling resistance, leading to higher fuel consumption.
When should I replace my tyres?
For safety, it’s recommended to replace tyres when they reach around 2–3mm tread depth, even though the legal limit is 1.5mm.
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