1. Tricycle: A small car with three wheels and simple mechanical transmission. A carriage or flatbed is installed at the back for carrying people or loading goods. The tricycle is divided into front and rear parts. The front part has a steerable wheel, the handlebars, the bell, the brake, the pedals and the seat. The chain drives the rear wheels to rotate. The rear part of the tricycle is mainly the carriage.
2. Tricycles are a large category, including three-wheeled motorcycles. The main categories are: human tricycles, electric tricycles, and motorized tricycles.
3. Three-wheeled motorcycle: It is a motorcycle with three wheels, equipped with three wheels, equipped with a carriage or a flat board, for carrying people or loading goods.
4. Three-wheeled motorcycles are motorized tricycles. According to Article 7 of Section 1 of Chapter 2 of the "Regulations on the Application and Use of Motor Vehicle Driver's License": The three-wheeled motorcycle belongs to the Class D driver's license.
