Hi, I was reading the thread, on your wheels and you mentioned going from the 19" Champions back to a 18" wheel/tire. If you don't mind me asking,...I have 19" RGB5's on my C4s and I find the ride quality to be horrid. I've never had 18" or ridden in a C4S with 18", so I don't a reference point. Also, since I have the M030 (turbo) suspension, it may be that...versus the 19" tires. Anyway, did you find a big difference in ride quality, when you switched to 18"? If not, I may look at suspension changes before wheel/tires. I do like the look of my Champions....they don't seem too big, but the widebody may help offset the size. Also, I have Michelin PS2's, so it's not just a tire issue.
Thanks in advance, for any insight!
Dana