I am fine with 17 Axis w/ 205/40/17, and has 40 offset. no rub, I used GC and Koni.
the ride is even worse when I used 16 with winter tire.
But yes the car slow abit cause the rims.
I think 18 is a little too big for civic, IMO
anyway, the rims (Axis 7) are for sale, because of the flakes bidder on ebay.