Made to make you better. This product follows the Grand Prix 4000 S II. They have revolutionized the cycling scene with Continental's unique tread compound, produced only in Germany. With the legendary BlackChili Compound, Continental was able to answer the eternal question of whether grip or rolling resistance is sustainable. Regular test wins prove the measurable and perceptible advantages for drivers in the laboratory and on the road. The latest polymers and specially developed carbon black particles and fillers guarantee a unique performance. Vectran is a synthetically produced high-tech fibre with a natural model. Like spider silk, Vectran is a liquid crystalline polymer (LCP). Vectran is spun from the molten liquid polymer Vectra and further processed into a multi-fibrous yarn. Spider silk as well as Vectran have an enormous tensile strength at lowest weight. Exactly the right properties to be used as puncture protection in a Continental Top tyre. A Vectran breaker is lighter, more flexible and protects more effectively against cuts than comparable nylon breakers. The Vectran Breaker does not influence the rolling resistance.