DID is an OEM of many Japanese and European brands. Leading racing teams in the Road and off-road sports rely on the technology of DID. DID 520DZ2: The new 520DZ2 has been specially developed for use in trail and motocross applications. Their low weight ensures a reduction in the moving masses while maintaining a high tensile strength. In addition, rivets produced by a special process (SDH), which have a high surface hardness, speak for the 520DZ. Gold-colored outer pockets, black inner pockets (G & B Gold and Black).