From the green Karting pads (K), light blue historic (RSH) to three different race brake pad categories: The yellow RSL mixtures are specifically engineered for Endurance racing, while red RST are made for ultra-short sprint races. The blue RS are allround race brake pads. The Black RSC are specifically for Track Day use on Carbon Ceramic brake discs. Each Type of pad Comes in a selection of different mixtures, ranging from very aggressive to a milder variety. Also in their product line are pads for high-end OEM manufacturers, like Bugatti or Ferrari.