Galfer Brakes Floating Wave Rotor DF838WInvented by Galfer in the early 90s, Galfer Wave Rotors were designed to solve the problem of water and mud on brake rotor surfaces of trial competition motorcycles. As we developed the design, we discovered an added benefit: the brake system was running cooler. When we combined our new design with the premium materials we had already developed for our round rotors, the resulting breakthrough began the new generation of brake rotor technology. Made of