We’re not afraid to say that our GRIPTON compound is the best out there. And when combined with an ultra-supple 320 TPI cotton casing, you get a Tire Specialized that’s very special?you get the Turbo Cotton Tire Specialized. Both materials stand for master craftsmanship, and they work in harmony to reflect our dedication to building the world’s fastest Tire Specializeds. By bringing both of these materials together, we’ve created the best clincher Tire Specialized out there. It provides a clear-cut performance advantage.