I have a set of rims that are 17x7 with a 45 offset. What size of tires can I use. I want to put it on my stock height S2. What are the widest tires can put on it? What size for the front and what size for the rear?

How come people put 245/40/17 rear and 225/45/17 in front? 40 rear? 45 in front?

Thanks

 

something like 205 front, 225 rear?