Bigger wheels usually mean a lower aspect ratio, if you want to keep the speedo/odometer accurate. In most cases, this lower aspect ratio will result in a harsher ride. Plus, ultra-modern wheels with ultra-low aspect ratios look out of place on a 25-30 year old classic like the CS. (Ricey?) For pics of 16" wheels (not 17"), check out the thread below. Any size larger, and it will start to look kinda silly. Just my thoughts.