69PSI Member 15 Member For: 15y 4m 5d Gender: Male Location: Brisbane Posted 30/07/09 12:00 AM Share Posted 30/07/09 12:00 AM Hey guys,Recent mechanic I visited has told me that my tyre size is illegal. My sticker in the door says, 235/45/17, 245/40/18 & 215/55/16 (spare tyre)Is my 225/35/20 legal? According to Mr. Mechanic, you are not allowed to run a skinnier tyre then standard... Link to comment Share on other sites More sharing options...
69PSI Member 15 Member For: 15y 4m 5d Gender: Male Location: Brisbane Posted 30/07/09 12:07 AM Author Share Posted 30/07/09 12:07 AM (edited) hmmm judging from this phrase in the modifications guide found here, Modifications guide Qld"The nominal width of the narrowest tyre fitted to avehicle must not be less than 70 per cent of the nominalwidth of the largest tyre fitted and never less than thevehicle manufacturer’s narrowest optional tyre asindicated on the manufacturer’s tyre placard."I guess since my optional spare tyre is 215 in width that the 225 20 is ok?My only question now is does that 215/55/16 size apply to the spare ONLY? Edited 30/07/09 12:10 AM by 69PSI Link to comment Share on other sites More sharing options...
dule Donating Members 1,180 Member For: 17y 6m 29d Gender: Male Location: Sydney Posted 30/07/09 12:57 AM Share Posted 30/07/09 12:57 AM Not sure about QLD but in NSW you can't go bigger then 1 inch rim over standard. Why would you want to run a narrower tyre than standard anyway??? Link to comment Share on other sites More sharing options...
69PSI Member 15 Member For: 15y 4m 5d Gender: Male Location: Brisbane Posted 30/07/09 01:32 AM Author Share Posted 30/07/09 01:32 AM I don't really want to run a skinnier tyre, that's just what came with the car. Interested in whether it is legal, or not. Link to comment Share on other sites More sharing options...
senna_T Forged Member Lifetime Members 15,818 Member For: 17y 9m 6d Gender: Male Location: SW Sydney Posted 30/07/09 01:33 AM Share Posted 30/07/09 01:33 AM You should also check the load rating on those 225's - should be a 93 minimum on falcons Link to comment Share on other sites More sharing options...
winstor Member 611 Member For: 15y 8m 16d Posted 30/07/09 02:17 AM Share Posted 30/07/09 02:17 AM http://www.infrastructure.gov.au/roads/veh...n/vsb_ncop.aspx Link to comment Share on other sites More sharing options...
sickd Member 128 Member For: 17y 29d Posted 30/07/09 10:27 AM Share Posted 30/07/09 10:27 AM HOW WIDE ARE YOUR RIMS 8' OR 8.5'.IF THEY ARE 8.5 THEN 225 IS ILLEGAL Link to comment Share on other sites More sharing options...
69PSI Member 15 Member For: 15y 4m 5d Gender: Male Location: Brisbane Posted 30/07/09 09:13 PM Author Share Posted 30/07/09 09:13 PM ^^^^ Can anyone clarify where rim width comes into the equation? Link to comment Share on other sites More sharing options...
Slymeat Team Kickass Donating Members 1,926 Member For: 20y 9m 17d Gender: Male Location: Albion Park, NSW Posted 31/07/09 12:39 AM Share Posted 31/07/09 12:39 AM (edited) Firstly the site infrastructure.gov.au is a guide and cannot be used literaly for QLD you need to refer to Transport Operations (Road Use Management—Vehicle Standards and Safety) Regulation1999 in particular Division 1, 44 (1)© and Division 1, 44 (2)©(I). Which when put together state that a rim and tyre fitted to a vehicle with the prescribed pressure must not be less than 26mm smaller than the diamater specified by the manufacturer excepting the spare and that this combination must not be less than 70% of the widest tyre fitted while at the same time for a vehicle manufactured after the 1st of January 1974 the track of the vehicle must not be reduced.I should start charging a fee for this stuff......... Edited 31/07/09 12:41 AM by Slymeat Link to comment Share on other sites More sharing options...
IH8TOADS Silver Donating Members 3,618 Member For: 19y 4m 6d Gender: Male Location: OZ Posted 31/07/09 02:42 AM Share Posted 31/07/09 02:42 AM Most 225's are illegal due to load rating. Get 245x30x20 they're a lower profile (less overall diameter) than a 225x35, are correctly load rated for the falcons and perform better :-) Link to comment Share on other sites More sharing options...
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