I have a set or chrome rims and I'm not sure of the width on them but they have 245/45-17 tires sp I'm assuming they are 8" wide. I just bought a set of black bullets and was going to transfer the tires onto the black rims that are 9" wide. My question is, will 245/45-17 tires fit on a 17"x9" rim? Or do I need to buy 245/40/-17 tires go with them? I'm selling my black bullets to a guy tommorrow and need to konw if I can keep the 245/45-17's to use on the 17"x9"'s

 

The 245/45 will fit on the 9" rim but it will be at the max of its range. A 245/40 will fit better.

 

Turns out I'm gonna sell the tires.
I already have 315's in the back but need a tire for the 9" rim in the front.
Someone said I should get 275/40/17, or should I get 245/40/17?

 

I would put on a 255/45. I prefer to have a smaller tire in front. It will really make the 315`s look huge.(jmo)