Thinking of changing your tyre size? What are the legal requirements?
So you’ve bought a car and you would like to change the tyre
size. The Department of Transport and Main
Roads in Queensland have strict legal requirements for motorists wanting to
replace the vehicle’s original rims and tyres with
alternatives of different width, diameter and profile.
The regulations regarding changing your cars tyre size from that of the vehicle manufacturers is to
ensure any modified vehicles are still safe to drive and remain roadworthy.
Some of the requirements for passenger cars include:
·
The overall diameter of any tyre fitted must not be more than 15mm larger or 26mm
smaller than that of the vehicle manufacturer’s tyres for that model.
·
The rims and tyres are
not allowed to protrude beyond the bodywork of the vehicle, including flares.
·
All rims must have stud hole pitch circle
diameters suitable to the hub.
·
You are not allowed to fit spacers or adaptors
between wheels and hubs, other than those provided by the vehicle manufacturer.
·
The tyres must
have a tread depth of at least 1.5mm and no defects
·
The accuracy of the speedometer must be
maintained for the selected tyre and rim
combination.
·
The tyre to rim
fitting and the tyre to rim combination must be
in accordance with the Tyre and Rim Standards
Manual published by the Tyre and Rim Association
of Australia.
Apart from those listed above there are a number of other
considerations when deciding to change your tyre size
so it is best to seek the advice of an industry professional who is up to date
with the Department of Transport and Main Roads regulations.
Bundall Tyres on the Gold Coast are a reputable and professional tyre retailer so we have this information and are able
to expertly advise vehicle owners on the correct tyre and
rim combinations to ensure they remain compliant with the rules and their
vehicle remains safe to drive.
If you would like to have a discussion to see if changing
your tyre size is legal and achievable, call us at Bundall Tyres on 07 5504 5666 or you can
visit us at our Gold Coast showroom and we can take a
look at your vehicle.
We also offer services such as wheel balancing, wheel
alignments and tyre rotations, roadworthy certificates
and free tyre safety checks.