South Australian Consolidated Regulations South Australian Consolidated Regulations (1) A tyre on a
motor vehicle must not have cleats or other gripping devices that could damage
road surfaces.
(2) Except at tread
wear indicators, a tyre fitted to the vehicle must have a tread pattern at
least 1.5 millimetres deep in a band that runs continuously:
(a)
across:
(i)
for a vehicle with a GVM over 4.5 tonnes—at least
75% of the tyre width that normally comes into contact with the road; or
(ii)
for another vehicle—the tyre width that normally
comes into contact with the road; and
(b)
around the whole circumference of the tyre.
(3) A vehicle must not
be fitted with a tyre that has been treated by recutting or regrooving the
tread rubber, unless the tyre was:
(a)
constructed with an extra thickness of rubber designed for recutting or
regrooving; and
(b)
labelled to indicate the construction.