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^you will be more likely to rub the tyres due to increased diameter and speedo will also be out. I run 265/35/18 and they are just about right. If I was to go 275 or bigger I would be going with a 30 profile. Use a tyre size calculator on the webz and try to match the factory rolling diameter as close as possible with your new size.

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According to ADRs and other stupid rules your apparently not allowed to fit a rim greater than 1" width and 1" diameter over stock. Sigh. I guess that's why most of us keep a set of some sort of stock rims just in case. but hey who could be farked getting defected.

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What's the issue with increasing rolling diameter. I though what's important was to keep all 4 tyres the same size for the awd

yep, you need to keep all 4 wheels the same rolling diameter, you also want to keep this rolling diameter the same as factory.

your answer has been given, if your at stock height then it will fit but will not be ideal, your gonna have an incorrect speedo

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yep, you need to keep all 4 wheels the same rolling diameter, you also want to keep this rolling diameter the same as factory.

your answer has been given, if your at stock height then it will fit but will not be ideal, your gonna have an incorrect speedo

Apart from incorrect speedo the 40 profile will it rub under normal driving conditions?

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According to ADRs and other stupid rules your apparently not allowed to fit a rim greater than 1" width and 1" diameter over stock. Sigh. I guess that's why most of us keep a set of some sort of stock rims just in case. but hey who could be farked getting defected.

I believe we have 2" increase as the 33 ways more than 1400kg

FWIW guys, at least in SA, they do not actually still go by those old rules regarding a fixed number of inches increase in wheel width or wheel diameter. So long as the % change in rolling diameter is inside the limits you can do any diameter change you like. So that comes down to availability of suitable profile tyres. Same with the width. So long as track is not out of spec and wheels/tyres do not poke or have interference problems, you can have as many inches extra as you like.

Of course, practically this often works out to being not much difference to the old blanket rules anyway.

So while I know this to be the case in SA, it may or may not be in other states. But it was my understanding that most of the other states are being equally realistic about it these days. The old rules were written in simpler times.

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