Continental Attack/Force III Combo Road Bicycle Clincher Tire Set - Folding COMBO SET- Includes both the front and rear, Attack/Force, tire. BLACK CHILI- Features Continentals revolutionary Black Chili Compound which reduces rolling resistance by 26% improves grip by 30% and adds 5% more mileage out of your tire. VECTRAN PROTECTION- Reinforcing and matrix fibers made of Vectran are 5X as strong as steel yet still extremely lightweight and abrasion resistant, protecting your tire from punctures more effectively than two layers of Nylon. TIREPOSITIONING SYSTEM- Continental utilizes their TirePositioning System where a narrower front tire reduces aerodynamic resistance and improves steering while the wider back tire improves traction and gives a more comfortable ride. HANDMADE IN GERMANY-Continental has been hand making their tires since 1871, maintaining the integrity of tradition, while evolving with the most advanced technology.