dilemma

[emiliok]

apparently you can only go two sizes up from the stock size, in order to be road worthy. also ive been told it will be hard to get insurance with the 18" especially if they arent road worthy (other than with Just Car)
Is this true?

[Wraith]

I'd like to know which back of the truck these Potenza's have falled off if you think your going to get them for 220/each.

Tyres will always be cheaper when purchased as a package with a full set of rims, instead of tyres only or an individual or a couple of tyres only...as already stated in a complete wheel packeage, you can get a good 20" low profile tyre for around that figure above, so a good 18 can be had for less...

[Wraith]

apparently you can only go two sizes up from the stock size, in order to be road worthy. also ive been told it will be hard to get insurance with the 18" especially if they arent road worthy (other than with Just Car)
Is this true?

The 'normal' rule of thumb is what you've stated above...

Check with your individual insurer and policy you have !!!

Whatever they let you get away with or have, that's what you should stick to

Just make sure the tyre loading specs are in check and you'll have no hassles...

[sooty]

apparently you can only go two sizes up from the stock size,

I thought that was right but it was 2 sizes up from the largest size on the Model, eg G Astra had 17"s on the SRi-T (i think) so you could go 19"s on the G astra's.
You should be fine with 18"s

[JR]

I thought that was right but it was 2 sizes up from the largest size on the Model, eg G Astra had 17"s on the SRi-T (i think) so you could go 19"s on the G astra's.
You should be fine with 18"s

the astra SRi & Turbo are in a different boat to the astra city, cd, equipe etc etc - in terms of legal tyre specs.
the astra SRi & turbo came with 17s standard from factory, whereas the "normal" astras came with 15s or 16s as factory standard.

ur meant to b able to upsize 2" max from these - according to insurance companies.

ur local jaxquikfit or bobjane store can tell u - they have the tables to work all that out, and if its legal for ur car.

[sooty]

Still means 18"s will be legal for them Always good news.

[Wraith]

Still means 18"s will be legal for them Always good news.

Correct....

As in my 1st post here - 18's are the choice !!!

The only reason to not go 18's is if the budget won't allow

[sooty]

If you could have a set for show for the GT/R wraith...
What size...??? 22"s?
keeping in mind you have the stock set for track work...

[poita]

24" Ftmfw!!!

[sooty]

lol...theres is such thing as too big i reckon lol, don't want it to look like a monster truck...plus...with 24"s...do you just stick an elastic band around the outside as tyre?