The Grand Prix 4000 works on every road surface, transforming the demands of different styles of riding and supplies extremely long-term performance. It achieves expectations in precision and production quality. The new reference standard for racing tires. The Vectran breaker belt, developed and patented by Continental, surpasses even the famous puncture resistance of the former leader in this category, the Continental GP3000. The extremely strong Vectran fabrics are more flexible and lighter than all other puncture protection materials.