Successor to the venerable Grand Prix 3000. The Grand Prix 4000 is truly a paradigm shift. The Grand Prix 4000 is the first racing tire to implement Vectran technology and is therefore lighter, yet tougher than its predecessor, the Grand Prix 3000. It offers: • Stronger Puncture Protection • Lighter Weight • 20% Less Rolling Resistance • Higher Mileage Vectran is a multifibred thermo-plastic yarn, made of melted Vectra Liquid Crystal Polymer. Vectran is the only LCP fiber in the world, which is made using a spinning process. Reinforcing and matrix fibers made of Vectran are lightweight, extremely durable, have reliable longevity and are five times as strong as steel. Weight: 205 g Max. pressure: 120 psi. |