Legal Rim/Tyre Sizes

[jono0309]

Hey All,

I am just curious to see what is classified as legal, at the moment I have 20's (SuperSports) which I enjoy as I know they are legal and can't get defected by the cops for them.

On a VE, the standard rim is 18" (SV6/SS) and 19" (SSV), if genuine Holden/HSV rims can also be 20" (the optioned wheels and tyres), does this mean you can have 20mm bigger on the standard rims you get with the car or the optioned wheels you COULD get with the car?

Reason I am asking as I have seen people get defected for having 22's with 245/30/22 tyres fitted, are these dimensions legal? What is the maximum legal wheel for a VE?

I just dont want to get 22s too and get defected, its bad enough with a stock VE and cop attention, let alone having 22s on it and getting defected the day I get them.

I have seen many people get 22s on VEs, but cops say its illegal? :confused:

Any help is appreciated.Jon

[oranpark_addict]

Correct me if I'm wrong but I believe that you can have a wheel that is 2 inches larger than manufacturers specs. On VE's 20's are fitted so 22 should be legal.

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

[jono0309]

I couldn't view that RTA page man.
The 2 inches rule is not true I do not think (correct me if I am wrong), but I think there is a maximum, because rim size does not matter, its done by tyre as the tyre could be smaller/bigger too.
I thought 22s would be legal too but I have seen two of my friends with VEs get defected for it...

[shep]

The wheel size you can go 2" bigger than (if that is how much) is on the tire placard on your drivers door, not what a HSV may have.

[jono0309]

What if Holden give 20s as a factory option is it 2inches on top of that or still the placard? I checked my placard and its the same as the other VE commodores.

[shep]

If 20's are on your placard then ok.

It used to be 2 ", not so sure now. The man with the defect stickers seem to put them on whatever they wish to then "you" have to get it off, meanwhile they will check out the rest.

The placard rules. As in if your placard says 18" then Holden can option 20's

[Daves8]

Jono, as i am sure Dave told you there is a specific task force in Sydney targeting modified cars...

In my opinion if you drive a modified car in the city on a fri/sat night you have to expect you will be defected.....

Your car looks good as it is, i would leave it with the 20s

[pmac]

its 2 inches from the placecard in sa as per the adr rule

not sure if the its 2 inches from the smallest wheel on the placecard anymore as the spacesavers would stuff it up for everyone.

[jono0309]

Yeah I understand Dave, I know from experience having being RBT'd/Checked many a time not only in the city but in the beaches too...
I like the 20s but bit over them, thinking 22" G8s with black/shadow chrome finish.
Should come out more these days...
cheers

[vy2lx8]

In Vic you cant go any more than 1 inch wider (as in 8-9 inch) and 15mm larger rolling diameter than what is on your placard, they dont say anything about actual rim diameter. There are heaps of calculators, google tyre size calculator but the best info you can get is from your local RTA authority websites. They are very specific.

[jono0309]

thanks buddy, ill have a snoop around.

[oranpark_addict]

Sorry mate, let us know what you end up doing:)And if you go 22s and get defected:rofl:

[v8dude78]

Jono, as i am sure Dave told you there is a specific task force in Sydney targeting modified cars...

In my opinion if you drive a modified car in the city on a fri/sat night you have to expect you will be defected.....

Your car looks good as it is, i would leave it with the 20s

Im in VIC but whats the go with this "specific task force targeting modified cars" and i thought they were cracking down on us here in VIC :confused:

[C4B]

What if Holden give 20s as a factory option is it 2inches on top of that or still the placard? I checked my placard and its the same as the other VE commodores.

The factory option would be within that legal tolerance (based on the tyre placard). You can't then treat the option as a baseline and then go the same amount again.

[Darkrayne]

Main thing ive heard is that one can't get correctly load rated tyres for the 22" wheels. Its what put me off buying some.

[wiggles127]

i have a wh caprice with 20s with 245/30's on it and have been told they are legal, because of the new rule that it is your stock tyre and rim size + 15mm, stock size being 15" with 225/55's. im in SA so dont no if its diff over in the other states.

[afmss]

it really depends on the officer that pulls you over ,you carnt get 22 inch tyres with the legal load rating to suit the ve,the 22 inch wheel size is ok ,but put an hsv tyre plackard on just incase your checked ,ive done 30,000 k s on mine been pulled over 5 times now no issue with the wheels so far .
im running 22/9 245 front and 22/10 295 rear

[LS1FRK]

If 20's are on your placard then ok.

It used to be 2 ", not so sure now. The man with the defect stickers seem to put them on whatever they wish to then "you" have to get it off, meanwhile they will check out the rest.

The placard rules. As in if your placard says 18" then Holden can option 20's

Definitely go with the placard, if your maximum is 18", go no more than 2" larger and 1" wider. Keep an eye on your tyre profiles too.

[jono0309]

My placard says 19inch because it has the same placard as the SSV, SS, SV6, Omega.
The RTA says go by the placard and can also go by the biggest manufacturer's option...
Ill get the link to the PDF..

[jono0309]

http://www.rta.nsw.gov.au/registration/downloads/vsi/vsi_dl1.html
Near the top of the page the PDF for wheels and tyres for light vehicles is included.

Says 25mm above the manufacturer's largest wheel option and 25mm lower than the smallest wheel option, does this mean the optioned 20s (SuperSports, Fluxus (sp?), GTS, Clubby wheels) or the 19" wheels (applies to stock SSV)?
It does not mention 25mm above the placard, it states the placard just holds information regarding specifications for wheels and tyres, not that it should be 25mm above the placard, but instead says 25mm above the largest wheel option given by the manufacturer.... confusing but I want a definitive answer!!

haha cheers

[mjrandom]

Taken from the Qld Transport regs I know but as far as I am aware the details are pretty much the same in all states. There is no specific detail on wheels but the final tyre diameter must be between +15mm and -26mm from standard. So it is permissible to run 275/30 20s even if your car came with 225/65 15s provided the tyres don't rub, the track isn't more than 26mm wider (or narrower) and the tyres are inside the guards, as below:

"The rim diameter may be varied from the standard size
but the overall diameter of the tyre must not vary by
more than +15mm or -26mm."

Likewise width is only limited to 30% larger than the manufacturer's widest tyre but also tyres must still fit under mudguards.

"The maximum tyre width for a car or car derivative must
not be more than 1.3 times the vehicle manufacturer’s
widest optional tyre."

"The nominal width of the narrowest tyre fitted to a
vehicle must not be less than 70 per cent of the nominal
width of the largest tyre fitted and never less than the
vehicle manufacturer’s narrowest optional tyre as
indicated on the manufacturer’s tyre placard."

The replacement rims must be of suitable offset so that the track stays within +26mm of standard.

"The wheel track must not be reduced to less than the
standard track specified by the vehicle manufacturer
for the particular model of vehicle.
The track of a car or car derivative may be increased
by up to 26mm beyond the maximum specified by
the vehicle manufacturer for the particular model of
vehicle."

Andwhere most 22" rims come unstuck:

"Load ratings of tyres must be at least equal to those
specified by the manufacturer on the tyre placard fitted
to vehicles made after 1972."

Most 22" tyres are either too tall, running 30 or 35 profile or are not the same load rating as original factory tyres. For example 245/35 20 is 679.5mm overall diameter. 245/30 22 is 705.8mm so doesn't comply. If you go to 245/25 22 the diameter is ok but the tyre is not high enough load rating.

Don't confuse speed rating and load rating. Both are important and new tyres have to meet or better standard tyres.

http://www.transport.qld.gov.au/resources/file/ebde8d0521b67c6/Pdf_modification_motor_vehicles2.pdf

Michael

[jono0309]

Thanks heaps mate,
Appreciate the write up.

[50PAID]

I'm pretty sure its 15mm rolling diameter. That's what the PDF from the RTA says.

[mad_industries]

aorry to dig up old thread

jono0309, whats your tyre placard?
as yours is an SV6, is it an identical card to those of the SS and SSV?
my SV6 ute only has 18" listed on it.
what is the load rating you are supposed to have?
cheers