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Vz legal rims

Discussion in 'VZ Holden Commodore (2004 - 2006)' started by Kulacz1176, Nov 27, 2017.

  1. Kulacz1176

    Kulacz1176 New Member

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    i have a vz commodore with 17”s and want to go to 19”, what size tyres would I have to get for them to be legal
     
  2. Sandman

    Sandman Challenge Accepted

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    245/35/19.
     
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  3. Sean880

    Sean880 Well-Known Member

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    The issue you will have going to a much lower tyre profile is the load rating of the tyres. If you fit a tyre with a load rating LOWER than is specified on the tyre placard fixed to your car your car will be unroadworthy.

    The 17 inch wheels fitted with stock tyres will be 235 45 17 (644 mm diameter) - typical load rating 94 or higher.

    Assuming a 19 x 8 or 19 x 8.5 inch wheel, to keep the tyre diameter the same or similar you now need 35 profile tyres:

    235 35 19 647 mm diameter typical load rating - 91
    245 35 19 655 mm diameter typical load rating - 93

    So check the tyre placard on your car and if you want a tyre fitment that is legal and roadworthy, you will have to comply with the minimum load rating on the car's tyre placard.
     
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  4. ShellyMacca

    ShellyMacca New Member

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    I looked this up myself when I went from 18's to 20's on my VY (old car) .. I found if I stuck to the high 90's and Y or W... I was safe... LOL being female I just had to simplify all the car talk into letters and numbers!

    At the moment I have 19's on my VZ
    size is...
    F - 19x8.5 ... 225/35ZR19.88W
    R - 19x9.5 ... 245/35ZR19.93W

    I'm selling them if anyone wants vertini Hennessys... Im not loving the staggered look on my car... Advert. On gumtree
     
  5. SAV_117

    SAV_117 Donating Member

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    I know this is an old thread but didn't want to start a new one.

    From memory cops used to look at the tyre placard and go by the lowest rim size on the placard and say you could only go up 2 inches eg: my placard says 16 or 17 so the biggest I could go to would be 18s?

    Has this been replaced by the 15mm rule?
     
  6. vc commodore

    vc commodore Well-Known Member

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    The law changed over 10 years ago....You can fit what ever you like, providing it doesn't increase the track by more than 25 or 26MM from the widest track available for the car....The load rating for the tyres must be equal or greater than the load rating for the car....The rolling radius must be identical to the factory fitament for the car...And finally, mustn't foul any suspension components or body work
     
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  7. RiCeY

    RiCeY F O R U M W A R R I O R

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    Just get the applicable tyre placard to suit your rims off ebay, can't go wrong then.
     
  8. vc commodore

    vc commodore Well-Known Member

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    I know this is a late reply, but this will not work with an earlier car...Earlier model cars only came out with the sizes available for all models, not specific placards for specific models..

    And yes, I know this thread is to do with VZ Commodores, but the principal is the same and will save the unnecessary expense and hastle of getting and fitting another placard
     
  9. RiCeY

    RiCeY F O R U M W A R R I O R

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    If the rim size didn't come out on that model, then there would be no applicable placard to purchase.
     
  10. vc commodore

    vc commodore Well-Known Member

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    Pointless even purchasing a placard, with a rim change....I have mentioned the rules in relation to rim/tyre changing...This is an Australia wide rule....

    All tyre shops get a book, the universal tyre guide, every year, which has the majority of cars in this country and all the applicable rim/tyre combinations for each and everyone of these cars....It also has what tyre and rim combinations which can be used to keep the car ADR compliant, especially when going up or down in tyre and or rim sizes..

    I have actually used this book to have a defect lifted free of charge for a customer, because of an over zealous copper trying on the placard speil....

    At the end of the day, if people wish to throw money down the toilet by buying a placard unnecessarily, go for it....I've pointed out the rules and not much else can be said
     
  11. RiCeY

    RiCeY F O R U M W A R R I O R

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    Yes because they are so expensive at $10-$20, and the placard is the first thing they look at so it's hardly pointless. But keep ranting on I'm sure someone will be interested.
     
  12. vc commodore

    vc commodore Well-Known Member

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    And has been pointed out that it is not necessary to change....
     
  13. RiCeY

    RiCeY F O R U M W A R R I O R

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    Yeah totally unnecessary, when I fitted 19s my placard only said 17s. Got pulled over one day and the cop went straight to the placard and checked the diameter on the tyres and said all good. Such a waste of money and so pointless changing the placard, it only saved me from getting a yellow and having to put everything back to stock at a huge expense. Taking your advice would have cost me, fancy that.
     
  14. vc commodore

    vc commodore Well-Known Member

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    You're obviously not reading my posts correctly....ie the 18th of this month is what I'm referring to.....

    Oh and how is it, you can legally fit 22" rims to VE and VF commodores, when there is no relevant placard for them? A tyre shop is responsible to ensure a car is legal, when it leaves the shop, after a rim and tyre upgrade or downgrade...

    Fancy that hey
     
    Last edited: Jun 10, 2018
  15. RiCeY

    RiCeY F O R U M W A R R I O R

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    Considering I said I fitted 19s your question is irrelevant. Just love the sound of your own voice Im thinking.

    Tyre shops generally employ morons that can't do anything else, relying on them to make your car legal is not the brightest thing one can do.
     
  16. vc commodore

    vc commodore Well-Known Member

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    Fitting 22" rims onto a car that only came with a 20" placard has the same relevance as what you're trying to bang on about. ie putting the correct placard onto a car to match them rims....So have you got an answer for that, or just bouncing around?

    True...Tyre shops only employ morons, because us morons have to deal with know it alls like you...Then know it alls like you go whinging and whining we won't do what you want us to do, because it is illegal...Catch 22 for us morons.
     
  17. Trev084

    Trev084 Member

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    I think you have things confused. Yes track can be changed so much but you can do whatever rim size you want providing the tyre diameter does not exceed +15mm or -26mm.
     
  18. vc commodore

    vc commodore Well-Known Member

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    Hummm....Isn't that what I wrote? I just didn't write the rolling radius perametres
     
    Last edited: Jun 12, 2018
  19. Trev084

    Trev084 Member

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    Well all that you have mentioned is rim size and track.
     
  20. vc commodore

    vc commodore Well-Known Member

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    Perhaps re-read the first line
     

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