I got rid of my Vredestein Fortezza's because I kept getting flats on the rear. Front was fine. I had one Gatorskin, and ordered another. I may end up with some blue trim Serfa Secas (The Vredestein's had blue trim which went well with my bike). I had the Sefas Secas before and they wore like iron. I sold the bike they were on. Never did replace them.