new 20

Niche Targa 20x8.5 - 20×10 - 245/35/20 - 275/30/20. Just put on 20" wheels. Do anyone have experience with the low profile 30 series tires in the rear? Any issues with them bending your wheels or air inflation? I believe these are the proper set up for a 20" stagger wheel for our car. Please...