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You'll have to get the 19's engineered if you wanted to drive with them and not get hassled.

I think the overall tyre diameter of a 19inch rim with 30profile tyre is less than that of a 18 inch rim with 40 profile. Anyway, my mates got engineered 19's on his S6 and thats basically what happened.

You'll have no worries with 18's. Basically, you'll legally allowed to increase the rim size by upto 2inches from standard.

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Get an engineer's cert from an engineer, check the lellow pages i spose . They'll just check the wheels, which means you can get raped for having other non engineered mods on ya car, except you're wheels. Unless, the cop thing's there is reason to believe that you have changed the car in area's which affect the engineering of it, and you'lll go to regency for it. Pretty stupid really.

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Does anyone know the maximum width allowable? I know 18" is the max legal diameter, but wat about tyre width? 265 has to be getting close doesn't it? I'd imagine you'd have to be pretty unlucky to get done for tyre width, but things being as they are...

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