So I recently got a 2017 ford focus sedan se it came with 215 55 r16 rims 7 inch width and 50 mm offset. I bought some 18 inch rims 42 mm offset 9.5 inch width I got 235 40 r18 tires but the rims kinda stick out of the fender like a 1 1/2. Im still a noob at this. Would rolling the fender help? And what caused this was it the offset or the tire width? What would be a good offset and width to go to if i whant 18 inch rims.