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:D Correct me if im wrong but the pdf says weight 1201kg and over max allowable rim size is 2" above standard. (For cars post 1973)

Arent Skylines above 1201kg? :P

you might be right... i think it was either 1 or 2"... regardless, 19 is still a defect on a R32 and R33 as they come stock 16", but not R34

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check your tyre placard. it'll tell you the car's allowable rim sizes. on the r33's it says that 18's are ok with a certain width tyre. have a look at yours and it'll tell you. its usually on the inside of your door.

just a word of warning, when i had my 19s it cos me $290 EACH tyre for brand new ones. my mate owns a tyre place and he kept every 2nd hand 19" tyre he got in just for me which cost around $80 a pair. these prices are all mates rates too.

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I thought its 1" or 2" is allowable for rims above standard?

In width, yes its 1". But he's not asking if he can put 19" wide rims on the car.

As for diameter / circumference, this is what the VSI06 you linked to (which I assume you read before linking to it) has to say:

The outside diameter of the wheel and tyre combination must be no more than 15mm over the largest diameter wheel and tyre combination specified for the vehicle and not more than 15mm below the smallest diameter wheel and tyre combination specified for the vehicle.

Correct me if my interpretation is wrong, but when the RTA says that the diameter measured is the "wheel and tyre combination", they're not just looking at the increase in rim height to determine its legality.

As long as he can find a tyre with a low enough profile to fall within that 15mm leeway, he could run any rim size he wants (until the rim itself has the same rolling diameter as the OEM tyre's rolling diameter, of course).

So he could get 19x7.5 rims (with the correct offset, of course) and 215/35 R19 tyres, and they'd still be legal in NSW.

He could even go to a 20x7.5" rim with a 225/30 tyre and it would still be legal.

Edited by scathing
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