The industrial chain of China's motorcycle industry mainly consists of upstream raw material suppliers, midstream motorcycle vehicle manufacturers, downstream motorcycle sellers and end consumers. Upstream raw material suppliers mainly include steel, aluminum, plastics, rubber, electronic components, etc. Price fluctuations of these raw materials will directly affect the production costs and profit margins of motorcycles. Midstream motorcycle manufacturers mainly include motorcycle vehicle manufacturers and motorcycle parts manufacturers, the technical level, product quality, brand influence, market share, etc. of these enterprises will directly affect the market competitiveness of motorcycles and consumer choice. Downstream motorcycle sellers mainly include motorcycle dealers, agents, repairers, etc. The service level, channel coverage and marketing of these sellers will directly affect the sales effect of motorcycles and consumer satisfaction. End-consumers mainly include individual consumers, enterprise consumers, government consumers, etc. The demand characteristics, consumption habits, consumption ability, etc. of these consumers will directly affect the market demand and consumption trend of motorcycles.