After much looking, I replaced my '88 Salad Shooters with C6 Speedlines. Love the sculpted facets on the thin spokes, not a fan of the flat "wagonwheel" look of C5 wheels. The 19"R/18"F gives it a slightly more contemporary look in my eyes. I have not seen many other C4's with this set up......I keep telling myself that because they are such nice wheels, C6ers don't replace them.