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QLD Tyre Size Laws - What Tyres Sizes Can You Legally Fit?

Considering a tyre size change?

Whether you’re aiming to enhance performance, improve fuel efficiency, or simply give your ride a new look, you should understand the ins and outs of changing tyre sizes in your state.

If you’re a vehicle owner in Queensland, here’s a guide to help you out!

Queensland Tyre Size Laws

According to Queensland Department of Transport and Main Roads, the tyre size should not exceed a diameter that is 15mm larger or 26mm smaller than the manufacturer’s recommended size (for regular passenger vehicles).

For 4x4 vehicles and light trucks, the new tyres can be up to 50mm larger than the manufacturer recommended diameter. You can only change the size of your tyres within these limits.

Additionally, it is important to note that the rims and tyres should not protrude beyond the bodywork of the vehicle, including flares. This requirement ensures that the tyres and rims do not pose a safety risk and maintain proper alignment with the vehicle’s body.

In QLD, the maximum allowable change in the combined diameter of the wheel and tyre is an increase of 15mm or a decrease of 26mm for passenger vehicles, and 50mm bigger for 4WDs and light trucks.

Let’s consider an example to understand this better.

Suppose your vehicle’s standard tyre size is 31 inches. In that case, the largest size you can legally fit is 33 inches. This restriction ensures that the tyres remain within safe limits and do not compromise the vehicle’s performance or handling.


Your tyre size has a profound impact on your driving experience, from safety and handling, to fuel efficiency and aesthetics.

Whether you’re eyeing a larger or smaller size, it’s important to make an informed choice that aligns with the unique requirements and regulations of Queensland roads.

Need help reading tyre sizes? We’ve got you! Check out our guide on how to read tyre sizes/codes.

Louis from Tyre Geek


I'm Louis, an engineer passionate about helping Australians choose better tyres for their vehicles!