The manufacturer may say their tyre can fit that rim but the law would most likely say the setup fails in other areas and for that reason so could the insurer.
You can’t increase the wheel track by more than 25mm.
If you shorten the axle assembly to achieve that you require engineering certification.
The rim width cannot be increased in width by more than 26mm over the maximum option specified by the manufacturer.
That would be the HSV GTS with a front rim size of 20 x 8.5
The largest allowed on the front is therefore 20 x 9.52
If the rims exceed the width limits an engineering certificate is required.
Both the above engineering certifications will be noted on the vehicle's registration.
Both the rim and tyre must be fully contained within the body work or mudguards (including any flares) when the wheels are in the straight ahead position.
I wouldn’t want to kill anyone with that combo on the car then try my luck in court and given the way it stands out it would not go in-noticed in the case of an accident.
The thing to bear in mind you can fit anything to your vehicle though most need to be fully signed off by an engineer!
That the reason most insurers won't insure mods as they put it in the too hard basket.
If you look at the RTA in NSW even a brake upgrade requires engineering unless your "exact model" came with them as oem.
I'm sure if the legal eagles approached the manufacturer for a recommendation on the largest front rim they'd get a difference answer than yours.
Commonsense has to be read into the requirements and that's why a maximum aftermarket width of 9.5" would see you right where a 10" protrudes.
It's your car though and your risk but to me it looks like you've thrown a set of BMW spec rims on because you couldn't afford nice flush made to order offsets.
well i would. if your theoretical situation did go to court, i could argue my stance. either way, said situation hasn't happened so we'll just leave that to up to me for that moment.
you'd be wrong then, these are custom offset/size rims to my specifications.
You ordered them like that, talk about a face palm.
It’s no wonder car enthusiasts who try to do the right thing are punished by ever harsher laws when someone blatantly and unashamedly breaks them like this.
This is not a stealth mod, it’s so in your face you can see for miles those rims are outside the guards and the stretched tyres even if they are legal draws even more attention towards the illegal rim.
You can’t slip your tyres while taking off at the lights under hoon laws because the powers that be believe a punishment for that offense will deter the idiots that also think its ok to do a full blooded burnout on a public street.
Your rims are in that same category, so blatant everyone suffers for it when the laws are amended.
A 9.5” rim would have at least been within the law.
They hang outside the guard you’d have no chance of winning that in court as no Magistrate is going to set a precedence.
I suspect the photo and the design of that particular tyre sidewall makes it look worse than it actually is but at the very least it looks like the rim edge is really vulnerable to hitting gutters. Variations in actual tyre widths for the same stated size are a pain in the arse but all you have to go by is the manufacturers fitment recommendations.
I have 235x40x18 Yokohama V105's on 18X8" VY SS wheels (the same as factory) and have to be really careful when parking near gutters and those rims don't have a lip like some do. Other tyres (including Yokohama's) the same stated size are physically wider and also protect the rim a lot better.
Jason.
Last edited by Jason01; 17-11-2016 at 10:12 AM.
[QUOTE=mitchy_;2155617]This is a 255/35R20 on a 20x10" rim.
Keep in mind some tyres are narrower/wider than others.
Oh yeah thats quite a bit then for a small change in size, that would most likely work for me, thanks for the pic. 245 would be retarded :P
So much hate... but when your bagged and hiding that rubber tucked up to the rim exposed lips are phat, i run lip to guard with off set's that run very close so i need the extra curve. All these haters prob have car's as high as buses.
I don't drive it daily so guess my circumstances are diffrent to mostwhat brand rubber do you have? ill check to make sure I get one thats with in spec limits of what they say.
Last edited by YellowDevil; 17-11-2016 at 10:58 AM.
[QUOTE=YellowDevil;2155657] Not sure what you class as hate, but your seeing it different to me. I just see someone that asked an opinion on something and people pointing out the facts. Simple as that.
Maybe try another forum if you want to hear fully sik bro that looks mint lol
ps... I love lowered cars, and my VE Calais sits on SSSL with 275 tyres, no issues whatsoever. But with heads and cam already and a blower about to go on, the old 215 cross plies on the back just
wont cut the mustard champ.
Last edited by BLACK 346; 17-11-2016 at 04:12 PM.
That slight turn-in shown in the photo you’ve posted doesn’t make any difference to how the rim lip sits in relation to the guard lip.
Well at least you know what the specs are, it's amazing how many fellows don't but because you have some doubters and you're offering advice why not strengthen your argument and post the specs including offsets on both the front and rear rims and tyres?
I also see you’ve already posted photos of the car when it was riding on 22’s and now you’ve taken time to post a close up of the new rims so you must like snapping pics of it, so why not post some photos of the car from further back.
That would also help validate your advice for the doubters on what initially sounds and looks illegal.
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