20'' of frustration! Help?

[Pyramidrocker]

Hi, i just want a set of 20'' rims for my 05 GT Wagon, prefferably the K-Speed Biaggi.
Will these fit?
Do i need to roll the gaurds?
What size tires do i need to fit these bad boys with?
Will it be illegal?
Thanks in advance!!

[hamish_023]

No idea why you would want to put 20" on a liberty when 19's look great and big enough but whatever...

viewtopic.php?f=19&t=8107

[smythie]

His other two posts were in that thread you linked to Hamish.

Mr Rocker, others have gone with 20" wheels on cars originally specced with 17" wheels. You really need to check with your local department of transport (RTA, VicRoads, Queensland Transport, etc). You haven't mentioned where you are so it is a little hard for the odd industrious one in here to check things for you

[hamish_023]

Ohh my bad.

From what i know in SA it's 2 sizes up (stock 17 - 19's etc) unless engineered

[Pyramidrocker]

Sorry, i'm in NSW.
Bassically i don't want to drive 2hrs to Tempe,fork out a wallet full of cash and buy these bad boys and get home and be deffected.
I guess it pays to do a little research first.
I've read Tempe are rubbish but, i can't get what i want down here.

[smythie]

NSW. Cool, a quick search of the rta site on google has yielded me this pdf (right click and "Save as") which in summary gives the following guidelines for use of new wheels:

- offset cannot be reduced by more than 12.5mm on each side (that means you can't go smaller than +43mm)
- Outside diameter of wheel/tyre combination must not be more than 15mm greater than that of the tyre size with the largest OD on your tyre placard. What tyre sizes are listed on the tyre placard of your 2.0i?
- the load rating of the new tyres you are putting on the car must exceed that of the lowest rating on your tyre placard
- the speed rating of the new tyres must be higher than 140mm
- no part of the wheel/tyre combo can protrude outside the extremities of the car body

Anything outside this will require what many refer to as an engineers certificate and the run around with blue slips and what-not.

Bear in mind that the document referred to is dated November 2003 (Rev 4). I don't know if there is anything later.

[Pyramidrocker]

Thanks heaps! Exactly what i was after.