jus bout an 03.5 g35 coupe 6mt. The previous guy has 245/40 in the back and 225/45 in the front. Have any of you ever heard of this combo ?

 

What size are the wheels?

What do you find odd about the sizes?

 

Are your wheels staggered? Maybe your rear wheels are mounted in the front. Vice versa. It's possible. I had a buddy who had this happen to him at a dealership!

*Edit: I totally misread his original post :\ OP you are fine. As stated below, those are the stock sizes for the OEM 19s.

 

225/40 and 245/40 were the stock sizes on the coupe 19's. He wasn't that far off.

 

Right, it is 18in brembo package. I just didnt understand why the car has 40's in the back and 45's in the front...

 

The wider the tire, the taller it sits regardless of the of its rating. Ex: a 245x35 sits slightly taller then a 225x35. Normally with more aggressive staggers the size difference is required so the diameter of all the tires are close.

On OEM setups this isn't required so I don't know why your car has those sizes.

 

neither do i but thanks for the help

 

Aspect ratio's won't necessarily be the same from front/back. The width and height work together to create the tire's overall diameter. Seems a tad shorter than normal for the rear of the car though.

 

225/45/18 front and 245/40/18 rear have equal OD, thus allow for AWDs to run a staggered set up.