Tires: tire infiniti g35 2008, infiniti g35, urgent advice

Question
i want to change front tires

can i put 245/45/r18 or 235/50r18 or 225/45/r18

as original now not available 225/50/r18

ur urgent advice required

please reply by email

Answer
Mansoor Aziz,

First, I am having trouble that you can't find 225/50R18's.  Tire Rack lists 26 different combinations.

But a 245/45R18 is too wide and a 225/45R18 is too small.  That's a real dilemma.  

I would suggest you spend additional time searching for the original tire sie.