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OK, I've been beating my head against the wall on this, but I want a lightweight rim, 18x8 up front, 18x9 in the rear. Mounted with 245/40-18 and 275/35-18. According to the FAQ on this site, they should fit beautifully.
I know the stock offset is 48mm and the centerbore is 69.5mm.
These rims are OZ Superleggera's, with the 5x120 bolt pattern and a 40mm offset. The 18x8's weigh 17.4 pounds, the 18x9's weigh in at 19.6 pounds. I have no idea about the centerbore.
So, as I understand fitment, the 40mm offset will mean they will be 8mm further out. That doesn't seem to be much of a problem as I imagine it would be hardly noticeable. But will there be rubbing issues?
Next question: what about the centerbore? That was something I was completely unaware of till I read another thread in this forum. Is it something I need to worry about or is there a workaround if the centerbore doesn't match?
Thanks, Padre
I know the stock offset is 48mm and the centerbore is 69.5mm.
These rims are OZ Superleggera's, with the 5x120 bolt pattern and a 40mm offset. The 18x8's weigh 17.4 pounds, the 18x9's weigh in at 19.6 pounds. I have no idea about the centerbore.

So, as I understand fitment, the 40mm offset will mean they will be 8mm further out. That doesn't seem to be much of a problem as I imagine it would be hardly noticeable. But will there be rubbing issues?
Next question: what about the centerbore? That was something I was completely unaware of till I read another thread in this forum. Is it something I need to worry about or is there a workaround if the centerbore doesn't match?
Thanks, Padre