Bud’s Tyres prioritise roadworthy tyres and requirements QLD. Our company policies are directly influenced by government laws and requirements in Queensland to ensure the safety of our customers. If you purchase any tyre or service from Bud’s Tyres you are guaranteed that your vehicle and associated fitting or service is roadworthy. Our team members strictly adhere to safety and roadworthy guidelines. You won’t just feel confident that your vehicle is roadworthy upon driving away from Bud’s Tyres. You can also drive away knowing that your vehicle has been serviced or tyres have been fitted with an exceptional level of care and attention to detail. We exceed the industry standard for quality control and customer service. Our number one priority is customer satisfaction.

We take roadworthy guidelines very seriously. Tyre failure truely can be a matter of life or death. This also applies to our second hand tyre range. Second hand tyres can be incredibly unsafe if purchased from the wrong dealer or outsourced without being inspected throughly. There a number of reasons beyond tread depth and wear that may deem your tyres unroadworthy. Whilst safety for you, your passengers and other motorists is the number one priority, unroadworthy tyres can also result in fines and insurance losses. Tyres are the second reason as to why roadworthy certificates fail.

You may need a roadworthy certificate if you:

Are transferring your vehicles registration to Queensland from another state or territory within Australia

Are registering an unregistered vehicle

Transferring vehicle registration to a new owner when selling a car or transferring vehicle registration to a family member

Clearing a vehicle defect or a notice of un-roadworthiness.

Unroadworthy tyres

Tread Wear

Tread wear is synonymous with an unroadworthy tyre. Worn tyres are not just a leading cause of motor vehicle accidents but are also easily spotted by police officers. We often are replacing tyres on our customers cars due to the direction of law enforcement.

Tread depth is the measurement from the highest point of the tyres rubber, vertical to the deepest groove of the rubber. This can be measured with a ruler or object such as a coin, however we recommend you measure this with a tyre tread depth gauge. Your tread depth should be at least 3mm and will need replacing immediately if they are beyond 3mm although the legal minimum is 1.6mm. Uneven tread wear is also dangerous and can be classified as unroadworthy or illegal if it is below 1.6mm at certain points on the tyres surface. This tread wear is often found on the tread shoulders or in the centre of the tread face.


While there are no laws addressing tyre age, Queensland Police recommend looking at replacing tyres after 5 years and up to 10 years if they are in good condition. Tyre fitters also stand by the 5 – 10 year rule. Tyre ageing can compromise your safety and the safety of your passengers.


If your tyres are worn, cracked or have large cuts in the rubber they will be considered unroadworthy. It is also important to look out for any lumps, bulges and tread separation. As a general rule consider if the tyres structure as been compromised in any way.


Tyre pressure indicates the amount of air inside of a tyre. Each make and model requires a unique pressure. You can find this on your tyre place card, owners manual or by following a tyre pressure chart online. Failure to check tyre pressure will often result in uneven wear, poor vehicle control and potential tyre failure.


Unapproved size fitted may be considered unroadworthy.


Unapproved wheels may be considered unroadworthy.

Queensland Transport Guidelines

We have complied a list of the main rules and regulations surrounding tyres and wheels from the website of the Queensland Department of Transport and Main Roads. Keep in mind that we have just highlighted the most relevant points and this document may be good to revise. You can find this downloadable document here.

To ensure that road wheels and tyres are of a suitable type and condition and that they provide the necessary load carrying capacity, speed rating and control of the vehicle.


Reasons for rejection:

  • Wheels/rims are not of an approved type and construction.
  • Wheels/rims fitted to an axle or axle group of a vehicle are not of the same size unless otherwise specified by the vehicle manufacturer.
  • Wheels/rims are not secure or are cracked, corroded, bent, buckled or otherwise damaged.
  • Stud or bolt holes are expanded or elongated or wheel and retainer tapers do not match.
  • A spoked wheel does not have all spokes fitted or the spokes are loose, corroded, bent, broken or cracked.


Reasons for rejection:

  • Tyres are not compatible with the rim to which they are fitted and not of a type suitable for normal road use (space-saver wheels excepted).
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  • All tyres fitted to rims on the same axle are not of the same case construction.
  • Tyres fitted to rims on an axle or axle group are not the same size.
  • For a car or car derivative, the maximum tyre width is more than 1.3 times larger than the vehicle manufacturer’s widest optional tyre width.
  • The tyre width of the narrowest tyre fitted to a vehicle is less than 70 percent of the width of the largest tyre fitted or less than the manufacturer’s narrowest optional tyre and rim as indicated on the manufacturer’s tyre placard.
  • Tyre load ratings are less than the minimum ratings specified originally by the vehicle manufacturer.
  • The speed rating of all tyres, when first manufactured, is not at least 180 km/h unless a lower rating has been specified in legislation.
  • Where a vehicle has been fitted with retreaded tyres, the tyres are not compatible with the rims and do not have a load rating which is adequate for the vehicle’s laden mass.


  • Tyres do not have a tread pattern at least 1.5 mm deep, other than at tread wear indicators, in a band that runs continuously across the tyre width that normally comes into contact with the road and around the whole circumference of the tyre.
  • Tyre tread, shoulder or side wall rubber are damaged.
  • Tyres have cuts, bulges, tread separation, exposed or damaged cords or other evidence of case failure.
  • Valve stems are cracked, damaged, perished or loose.
  • Regrooved or recut tyres fitted to a motor vehicle are not clearly marked “suitable for regrooving“.
  • Any tyre clearly marked “suitable for regrooving“ is regrooved or recut beyond the maximum permissible groove depth or is regrooved or recut in such a way that the ply or cord is exposed or damaged.

Contact Info

Opening Hours

Mon - Fri: 8:00 AM - 5:00 PM
Saturday: 8:00 AM - 1:00 PM