How large can i go in wheelsize?

[b3h3m07h]

Just been offered some 18" VY SS rims for $800 with 50% wear on all tyres. First off is this a good buy? second i want to put them on my VR Executive. Currently i have 16" VT SS rims on it or something but what are the rules and regulation on changing wheel size. Ive herd u can go up 2 inches, some say if the outer diameter is the same its ok but what do i have to know in order to keep it legal and not void my insurance?

[Freddy55]

Did a search for ya!
Check the following thread.

VS Calais Tyre size

[1991_Vn2nV]

Just been offered some 18" VY SS rims for $800 with 50% wear on all tyres. First off is this a good buy? second i want to put them on my VR Executive. Currently i have 16" VT SS rims on it or something but what are the rules and regulation on changing wheel size. Ive herd u can go up 2 inches, some say if the outer diameter is the same its ok but what do i have to know in order to keep it legal and not void my insurance?

Did a search for ya!
Check the following thread.

VS Calais Tyre size

That thread is full of misinformation.

If you are in SA you can only go 2 inches larger than what is stated on your ORIGINAL tyre placard. (You cannot change your tyre placard, that is illegal and police do carry books stating correct tyre and rim sizes for each model).

EVERY OTHER STATE in Aus you can have ANY size rim you like as long as you stay within 15mm of the original rolling diameter. So basically bigger rim = smaller tyre.

[SweetWagon]

That thread is full of misinformation.

If you are in SA you can only go 2 inches larger than what is stated on your ORIGINAL tyre placard. (You cannot change your tyre placard, that is illegal and police do carry books stating correct tyre and rim sizes for each model).

EVERY OTHER STATE in Aus you can have ANY size rim you like as long as you stay within 15mm of the original rolling diameter. So basically bigger rim = smaller tyre.

So your 19's are illegal then?

[1991_Vn2nV]

Yeah they are but if I stuck to legal the largest I could go is 16" so stuff that.

I've debated with Transport SA over our state guidelines but they're bunch of idiots so I gave up.

[AttaBoy]

Yeah they are but if I stuck to legal the largest I could go is 16" so stuff that.

I've debated with Transport SA over our state guidelines but they're bunch of idiots so I gave up.

I agree stupid rules...

[VRob]

Just been offered some 18" VY SS rims for $800 with 50% wear on all tyres. First off is this a good buy? second i want to put them on my VR Executive. Currently i have 16" VT SS rims on it or something but what are the rules and regulation on changing wheel size. Ive herd u can go up 2 inches, some say if the outer diameter is the same its ok but what do i have to know in order to keep it legal and not void my insurance?

What brand are the tyres? That's not a bad price, just be weary that it is 50% wear so you will obviously have to get a new set of tyres in the future. I pay $200 each on my VR just for the tyres, but they are Firestone's so they are from the US

[b3h3m07h]

ok so a few of you's are running a size to large for the model. whats happens with 3rd party insurance then, if you get into a prang, your fault, wont the insurance company say they wont cover you because your wheel size is illegal which then will completely screw you up if you make alot of damage to the other car?

[Grennan]

Just dont get into a prang. Either that or pull a shifty and keep your old rims, if you crash race back home swap em over before the insurance company sees your car

And i would say 800 bucks for 18" VY SS rims is a decent deal. Just for the rims youd be looking at that, and its comes with tyres as well so id go for it. Is there any damage on them?

[1991_Vn2nV]

ok so a few of you's are running a size to large for the model. whats happens with 3rd party insurance then, if you get into a prang, your fault, wont the insurance company say they wont cover you because your wheel size is illegal which then will completely screw you up if you make alot of damage to the other car?

Remembering its only illegal in SA...

Insurance don't come to the scene of the accident or anything like that so you just swap them over when you get home.

[VRob]

That's if you can drive the car home...

[1991_Vn2nV]

Get it towed home. I mean insurance know I have larger wheels but they dont have any limits on the wheel size as long as its legal. Technically according to ADR's my rims ARE legal as the ADR that had the 2 inch rule was scrapped on January 1st 2005, its just Transport SA have not updated their guidelines and it still refers to that ADR. If I had to go to court or something over it there would be no case as that ADR simply does not exist, but arguing with a policeman who has a defect pad is not so easy

There is no current law in place which states my rims are illegal, just outdated information in state guidelines that the Police follow.

[SummerSickness]

That thread is full of misinformation.

If you are in SA you can only go 2 inches larger than what is stated on your ORIGINAL tyre placard. (You cannot change your tyre placard, that is illegal and police do carry books stating correct tyre and rim sizes for each model).

EVERY OTHER STATE in Aus you can have ANY size rim you like as long as you stay within 15mm of the original rolling diameter. So basically bigger rim = smaller tyre.

not just SA follows the 2 inch rule, WA do too... i got a yellow sticker for my 18" VE SS rims the other week as the car came stock with 15"s, i asked the mechanic after he'd taken the yellow sticker off (put old rims on temperarily) and he said that its still illegal here, its possible the cop did it to be a prick and the mechanic was wrong, but not very likely, its a pathetic rule but how many people who are passionate about cars actually follow these laws? :

[1991_Vn2nV]

not just SA follows the 2 inch rule, WA do too... i got a yellow sticker for my 18" VE SS rims the other week as the car came stock with 15"s, i asked the mechanic after he'd taken the yellow sticker off (put old rims on temperarily) and he said that its still illegal here, its possible the cop did it to be a prick and the mechanic was wrong, but not very likely, its a pathetic rule but how many people who are passionate about cars actually follow these laws? :

WA have changed their laws too but its a pain to find info on WA laws. So the 2" law doesnt exist in WA anymore either. They shouldnt have defected you.

Vehicle publications

[SummerSickness]

WA have changed their laws too but its a pain to find info on WA laws. So the 2" law doesnt exist in WA anymore either. They shouldnt have defected you.

Vehicle publications

haha well that was nice of the boys in blue now wasnt it! any idea exactly where to find it in that website i've had a look but its difficult to find it.

[SummerSickness]

and from what ive heard the rim width is also a factor, apprently its only aloud to be 7" or so ive heard... my rims are 18x8's... i'll be pretty ****ed off if it turns out the rims are legal on my car... but at the same time i'll be relieved. should print out the information and keep it in my car for cops who wanna give me a defect... but then they'll prolly make up some felony because im bein a smart ass :P

[1991_Vn2nV]

and from what ive heard the rim width is also a factor, apprently its only aloud to be 7" or so ive heard... my rims are 18x8's... i'll be pretty ****ed off if it turns out the rims are legal on my car... but at the same time i'll be relieved. should print out the information and keep it in my car for cops who wanna give me a defect... but then they'll prolly make up some felony because im bein a smart ass :P

This is from VSI8 from VicRoads as I have this quote on hand, but WA should be the same:

The width of any replacement rim must not be more than 25mm greater than the widest wheel specified for that model or vehicle series

Therefore its not what size rim came on your car stock, but the largest rim used for that model i.e. largest rim any VR had from factory. So the SS rim would be included (HSV too?) which means you can go an inch wider than that, even if you have an exec.

IRS models had a 7" wide rim which means 8" wide is perfectly fine mate. I presume some models in the VR range even had a wider rim than that.

[1991_Vn2nV]

haha well that was nice of the boys in blue now wasnt it! any idea exactly where to find it in that website i've had a look but its difficult to find it.

Legislation for WA can be found here as I linked before:
Vehicle publications

This will then refer you to DOTARS National Code of Practice for Light Vehicle Construction and Modification (NCOP). Relevant information is found in NCOP11 (NCOP11 Section LS Suspension and steering 3 Feb 2006) which can be found on this page:
National Code of Practice for Light Vehicle Construction and Modification (NCOP)

It gives all the requirements regarding wheels and tyres there. For further information you can go straight to the ADR's. You will find relevant information in 'ADR 23: Passenger Car Tyres' and 'ADR 42: General Safety Requirements' which has a section on Rim and Tyres (this section replaced the old ADR 24).

[SummerSickness]

Legislation for WA can be found here as I linked before:
Vehicle publications

This will then refer you to DOTARS National Code of Practice for Light Vehicle Construction and Modification (NCOP). Relevant information is found in NCOP11 (NCOP11 Section LS Suspension and steering 3 Feb 2006) which can be found on this page:
National Code of Practice for Light Vehicle Construction and Modification (NCOP)

It gives all the requirements regarding wheels and tyres there. For further information you can go straight to the ADR's. You will find relevant information in 'ADR 23: Passenger Car Tyres' and 'ADR 42: General Safety Requirements' which has a section on Rim and Tyres (this section replaced the old ADR 24).

wow your good! haha. so they way i interprited that, is that aslong as the overall rolling diametre isnt changed by more than 25mm, its legal... which it hasnt because i increased the rim but decreased the tyre so its basically the same... good to know that! but still spewin they gave me a yellow for it, the rims werent really the problem just the little bits of wear n tear to the car that ended up costin me $1100 all up! plus the inspection fees!

[Summer-Sickness]

wait sorry didnt mean to write 25mm rolling distance, so its 15mm in diametre and 25mm in width... thats great, thanks alot for that 1991_Vn2nV your an absolute champ! that puts my mind at ease!

[1991_Vn2nV]

Yeah thats exactly right mate And cheers

[veeque92]

Remembering its only illegal in SA...

Insurance don't come to the scene of the accident or anything like that so you just swap them over when you get home.

This is Bad Advice.

Cars that are in serious accidents get towed from the scene by the police to there impound yard.
They are then fully inspected by road worthy officials before you get the car back, (this could be a month or more).

Makes it a bit hard to race home and swap your rims over in a hurry.

So if you do this be carefull. They might not do anything but do it at your own risk...

[nicko]

got a day off tomorrow, im going to research the rules and regs of each state and make a thread about it. how big rims u can have and wot tyres etc in each state of australia. hopefully it can be made sticky and do away with infinity threads about illegal mags and tyres etc.

[dufus]

We have a sticky thread with all the links to the relevant vehicle modification rules, including wheels, and very few people use it. Nearly all of the people who start threads asking about "how large can I go in wheelsize" are new to the forum and wont see the thread so they just post a new one up.

[nicko]

ah ok sounds good then. maybe we could all jst keep end eye out for threads like this and then simply post the link to that sticky thread and say no more in the thread.