The overall diameter of any tyre fitted to:
4WD passenger vehicles specifically designed for off-road use (typically MC ADR
category). All wheel drive (AWD) vehicles including those AWD vehicles that may be
certified as MC ADR category, (also commonly known as soft roaders) are not
included in this category;
4WD goods vehicles and their 2WD equivalents if the chassis and running gear are
essentially the same as the 4WD version (N ADR category); or
any medium weight goods vehicle (NA2, NB ADR category).
Must not be more than 50mm larger or 26mm smaller than that of any tyre designated by the
vehicle manufacturer for that vehicle.
The wheel track of off-road four wheel drive vehicles and goods vehicles (MC, NA, NB ADR
category) must not be increased by more than 50mm beyond the maximum specified by the
vehicle manufacturer for the particular model
Raising the height of the vehicle may be performed without certification providing the overall
increase in vehicle height is not more than 50mm. This may be achieved as a single
modification such as the installation of a 50mm lift kit, or by a combination of smaller lifts as
described below:
the fitting of body blocks or lift kits (50mm maximum if no other modifications resulting
in a change of vehicle height are performed);
suspension modification, (50mm maximum if no other modifications resulting in a
change of vehicle height are performed);
changes to tyre size (maximum change in tyre size diameter of 50mm); or
a combination of the above that results in a change of vehicle height not exceeding
50mm.
Note: In NSW, although vehicles whose height has been changed up to 50mm do
not require certification by an engineering signatory, the registration authority must be
notified of the modification.
kyle300exc wrote:6 inches overall, thats massive........ thats what I tell my Mrs anyway
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