The bigger the wheels / the lower the tyre profile, the harsher the ride is going to be.
https://www.aulro.com/afvb/images/im...015/02/570.jpg
This little red thing was a much nicer ride on the 19 inch rims it came with than it is on the 22 inch set he currently has on it. (But the big wheels look good). :D
My D4 had 18's on from new. I've been offered some pretty flash looking 19's or 20's at a good price. Would not even consider it. ;)

