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Everything You Need to Know

Tyre FAQ

How do I know when my tyres need replacing?

You should replace your tyres if:

  • Tread depth is 1.5 mm or less (legal minimum in Australia)
  • Tread wear indicators are level with the tread
  • Tyres feel unsafe in the wet
  • You see cracks, bulges, cuts, or exposed cords
  • There is uneven wear paDerns (edge wear, centre wear, patch wear, etc.)

If you’re unsure, drop in for a free tyre safety check.

Check your pressures:

  • Once a month
  • Before long trips
  • When carrying heavy loads


Incorrect pressure causes rapid tyre wear and reduces fuel economy.

You’ll find the recommended tyre pressure:

  • On a sticker inside the driver’s door,
  • In the owner’s manual, or
  • Inside the fuel flap (on some vehicles).


Incorrect pressure causes rapid tyre wear and reduces fuel economy.

You can check it by:

  • Using the tyre’s Tread Wear Indicators (TWI)
  • Using a tread depth gauge
  • Performing the 20-cent coin test


If the platypus bill on the 20c coin is fully visible, your tread may be dangerously low.

Uneven wear is usually caused by:

  • Incorrect alignment
  • Incorrect tyre pressure
  • Worn suspension
  • Tyres out of balance
  • Driving habits
  • Load distribution

We can diagnose the pattern and recommend the right fix.

Ideally, yes — especially on AWD or 4WD vehicles. But replacing two tyres at a time is acceptable if:

  • They are fitted on the rear axle for safety
  • The other tyres still have good tread


We’ll help you choose the safest option.

Most tyres last:

  • 40,000–60,000 km on average, depending on:
    • Driving style
    • Road conditions
    • Vehicle load
    • Tyre maintenance


Aggressive driving or poor maintenance shortens tyre life significantly.

You may need an alignment if your vehicle:

  • Pulls to one side
  • Has rapid inner/outer wear
  • Feels unstable at speed
  • Has had new tyres fitted
  • Has hit a pothole or kerb


We recommend checking alignment at least every 12 months.

Balancing ensures your wheels rotate smoothly. Unbalanced wheels cause:

  • Vibration in the steering or seat
  • Patchy tread wear
  • Premature tyre wear

Balancing is done every time new tyres are fitted.

Yes — within legal and safe limits. Changing sizes can affect:

  • Handling
  • Speedometer accuracy
  • Load rating
  • Insurance
  • Vehicle legality


Always ask us before upsizing or downsizing.

Your tyre size is printed on the sidewall, e.g. 205/65R15. This means:

  • 205 = tyre width (mm)
  • 65 = aspect ratio (sidewall height % of width)
  • R = radial construction
  • 15 = rim diameter (inches)


We can help you choose the correct and legal size.

Budget tyres can be suitable for light, low-kilometre driving, but premium tyres offer:

  • Better grip
  • Shorter braking distances
  • Longer life
  • Better performance in wet weather


We can recommend a quality tyre to suit your driving and budget. Our policy is not to sell second-hand tyres, as the unknown factors—such as prior use, unseen damage, or compromised integrity—may increase the likelihood of blowouts. These unknowns create safety risks we consider unacceptable.

Yes — even if the tread looks good. Rubber hardens and cracks with age. Tyres should not be used past 5–6 years, regardless of tread depth.

It’s the last part of the tyre size, e.g. 91H:

  • 91 = load rating
  • H = speed rating


These ratings must match your vehicle’s requirements. We’ll help you choose the right ones.

Yes — if the damage is:

  • In the tread area
  • Small
  • Not on the sidewall
  • Repairable to Australian standards


If a repair isn’t safe, we’ll tell you honestly.

Common causes include:

  • Uneven wear
  • Cupping
  • Cheap or aggressive tread patterns
  • Wheel bearing issues
  • Alignment problems


Bring it in — we’ll diagnose the noise.

It depends on how you use your vehicle

  • Highway Terrain (HT): mostly sealed roads
  • All Terrain (AT): mix of road and off-road
  • Mud Terrain (MT): heavy off-road use


We can recommend the perfect fit for your driving.

A proper tyre fitting includes:

  • Removal of old tyres
  • Fitting of new tyres
  • Wheel balancing
  • Disposal of old tyres
  • Optional wheel alignment (We recommend a wheel alignment when fitting 4 new tyres, however this is an extra charge.)


Nerang Tyre Service provides full service, every time.

Need Help or Have More Questions?

Contact Nerang Tyre Service — we’re always happy to help with no obligation, just friendly advice.

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