Thread: Is this true?

My understanding is the placard is the minimum to suit the ADR's.
You must meet both the load and speed rating.
There is also maximum incresses to comply with too.

I studied this quite a while ago, and if the tyre has "M&S" on the sidewall then the speed rating can be reduced but the load rating retained.Nearly all ATs and MTs have M&S on the sidewall.

In NSW anyway, you are supposed to affix a warning label on the dash in a prominent place to the effect that the speed rating is reduced. Nobody does.
Regards Philip A

Tyre speed rating

If the speed rating of the tyres specified for your vehicle is less than 140km/h you must not fit tyres with a lower
speed rating.
It is strongly recommended that the speed rating of the tyres fitted should be equal to or better than the rating of
the original tyres fitted by the vehicle manufacturer, however:

•

If the speed rating of the tyres specified for your vehicle is higher than 140km/h, you may fit tyres with a
lower speed rating but not lower than 140km/h.

•

If the replacement tyres fitted, including winter tread tyres (commonly called “mud and snow” tyres) and

retreaded tyres

, have a speed rating less than that shown on the vehicle’s tyre placard, a warning label must
be affixed to the vehicle (usually by the tyre dealer) which states:

WARNING

This vehicle is fitted
with tyres which
have a lower speed
rating than that
specified on the tyre
placard.

RTA VSI No. 9

The label must be at least 40mm x 40mm
in size, made of durable material, with not
less than 2mm high black lettering on an

orange coloured background.

See http://www.rta.nsw.gov.au/registrati...vsi09_rev4.pdf

Who police's this though? The majority of new cars now days, sedans & smaller etc have those pathetic 3" wide donuts in the boot to save on space & weight. They have a max speed rating of 80kmph & are intended only to get you to the nearest servo/tyre joint to have the failed tyre repaired but people I've witnessed regularly just continue to drive on them, not to mention not sticking to the max speed rating. They stand out like dogs nuts, usually being bright yellow in colour, so would it be the boys in blue to pull the car over or the vicroads/rta guys?

Originally Posted by Discobaker

Who police's this though? The majority of new cars now days, sedans & smaller etc have those pathetic 3" wide donuts in the boot to save on space & weight. They have a max speed rating of 80kmph & are intended only to get you to the nearest servo/tyre joint to have the failed tyre repaired but people I've witnessed regularly just continue to drive on them, not to mention not sticking to the max speed rating. They stand out like dogs nuts, usually being bright yellow in colour, so would it be the boys in blue to pull the car over or the vicroads/rta guys?

If we were talking trucks RTA would win the "pull over" compitition hands down
Being a 4wd I think RTA would also be the authority.
BUT, if they turned on their lights most people would igore them as they don't(can't) have red and blue lights.

So the small speed rated tyre is now in the "to hard" basket, till things go pear shaped

It was about reteads, they are limited to 140kph, Legally you can use them.....

I saw some 255/35/17 nankangs yesterday,,

they had M&S on the sidewall,,