http://www.digginter.com/Shopping/continental-grand-prix-4-season-road-tire/ Modeled Continental Grand Prix 4 Season Road Tire at the Grand Prix of 3000, and said puncture resistant fabric to prevent damagea flank Duraskin result of experiences in the Paris-Roubaix. Continental has also changed the site of this fact remain in Germany for tire grip in the year. Duraskin strengthens the wall without significant addition to the weight of the tires, and statistics show that Du Thu, 24 Dec 2009 11:05:57 CST en