Hi guys. I got a corolla 2014 LE with 205 55 r16 original tire size. Since I'm big and heavy each time i sit in the car, it goes down and i have been hitting many bumbs and other things on the road while driving. I'm thinking in change the tires and rims to 17" but I'm worry about it. Is it ok? Also I'm sure I'll need wheel spacers...are they safe? Thanks in advance