These are Kyosho factory replacement rear hubs for the Fazer FZD2 platform, sold as a set of two. They serve as the rear uprights, locating the wheel bearings and connecting the suspension arms to the rear axle assembly. Keeping a spare set on hand is practical for competitive or frequent bashers, as uprights are common wear and impact items. Features: Set of two rear hubs Fits Kyosho Fazer FZD2 platform Replaces worn or damaged rear uprights 7/7/26 cs