Hi,

I have seen a lot of people on here running 20's even 22's so thought I might be able to get some assistance.

I'm looking at putting 20's on my 380 and want to know what specifics I have to stick to to satisfy the rta and not void my insurance (nsw restrictions).

Any helps would be greatly appreciated.

Have a read on the rta site 20 inch is fine, 8 inches wide maximum +35 offset maximum. However none will really void insurance if you go +30 offset and 8.5 wide for instance. Wheels generally don't matter, noone on this forum has ever had insurance problems from wheels.

Biggest thing to keep in mind that is that the speed and load ratings of the tyres meet or exceed the factory specifications.

Call your insurer and ask! Make sure you get your upgraded wheels on the policy if you go bigger, and make sure they note the on the policy as 20" wheels, not just after market wheels that way you know you are covered. If they wont cover you, try a different insurer. If you don't ask and don't list them you could just be paying money for nothing.

Have a read on the rta site 20 inch is fine, 8 inches wide maximum +35 offset maximum. However none will really void insurance if you go +30 offset and 8.5 wide for instance. Wheels generally don't matter, noone on this forum has ever had insurance problems from wheels.

ok great, will try sticking around that 8 inch wide mark.

Biggest thing to keep in mind that is that the speed and load ratings of the tyres meet or exceed the factory specifications.

i've heard quite a bit about this load rating business but am not too familiar with how to figure it out to meet the requirements

Call your insurer and ask! Make sure you get your upgraded wheels on the policy if you go bigger, and make sure they note the on the policy as 20" wheels, not just after market wheels that way you know you are covered. If they wont cover you, try a different insurer. If you don't ask and don't list them you could just be paying money for nothing.

I've tried to gauge some info from the insurance company but the people on the end of the phone r pretty much useless, definately making sure they know there 20's and getting some sort of written/print conformation of the adjustments.

i've heard quite a bit about this load rating business but am not too familiar with how to figure it out to meet the requirements
Basically, your tyres are designed to withstand a certain load. It will be a figure (generally between 80 and 110) written on the tyre's sidewall. This is usually followed by a letter, which designates the tyre's speed rating. An example might be "94V".

380s have a factory load rating of '93' (it's on the placard inside the driver's door). This means that your new tyres must be 93 or greater. Any reputable tyre shop should pick tyres for you that meet this requirement. Simple as that :)

Basically, your tyres are designed to withstand a certain load. It will be a figure (generally between 80 and 110) written on the tyre's sidewall. This is usually followed by a letter, which designates the tyre's speed rating. An example might be "94V".

380s have a factory load rating of '93' (it's on the placard inside the driver's door). This means that your new tyres must be 93 or greater. Any reputable tyre shop should pick tyres for you that meet this requirement. Simple as that :)

ok great quite simple to work out, thanks heaps for your help!