I just got my new 19" wheels: 19" 8.5 front and 19, 9.5 rear. The front came with 235/35 Nitto INVOs and the rears with 275/30. Is that the most optimal tire configuration? I visited by local tire shop and they told me that I should go with 245/35 in the fronts and the rears are fine. Any advice?

Also, should I have ordered 19" 10 in the rear instead? These are 3-piece wheels from modular-concept.
Thanks in advance.

 

The rears are correct, but the fronts should have been 245/35/19.

It won't cause issues, but it isn't the optimal size.

 

The rear is the optimum fitment to guarantee no rubbing under spirited driving. The front like said should be 245/35-19, but won't cause any issues. They are about 1/3" too short in front, but front and rear height is about the same.