Motorcycle forging is an important part, which is manufactured by forging process and widely used in various systems of motorcycle. Forgings play a crucial role in the design and manufacture of motorcycles. Forgings are usually made of metallic materials, which are plastically deformed and obtain the desired shape by heating the material to a specific temperature and applying high pressure. This process is called forging because it increases the strength of the material, improves its mechanical properties, and has high wear and impact resistance. The material used in motorcycle forgings is generally high-strength alloy steel, which has excellent mechanical properties and excellent durability. Key components of motorcycles such as crankshaft, connecting rod, gear and camshaft are usually forged by forging process. These components play an important role in the motorcycle’s motion system and transmission system, they need to withstand high-speed rotation and complex loads, so they must have sufficient strength and reliability. The manufacturing process of motorcycle forgings is demanding and requires multiple processes and precision machining. First, the appropriate material is selected and pre-treated, and then the material is heated to the right temperature to make it have good plasticity. Next, high pressure is applied in a specific mold to deform the material into the desired shape while eliminating internal defects and residual stress. Finally, the physical properties and surface quality of forgings are further improved by heat treatment, machining and surface treatment. Motorcycle forgings have many advantages. First of all, because the metal particles are compacted during the forging process, the forgings have a higher density and strength, and can withstand larger loads and vibrations. Secondly, the forgings have dense structure, no cracks and inclusions inside, and have good toughness and fracture resistance. In addition, the surface of the forging is smooth, not easy to produce friction and wear, extending the service life of the motorcycle. In the design and manufacture of motorcycle, the quality and performance of motorcycle forgings directly affect the safety, reliability and performance of the whole vehicle. Therefore, in the production process, we must ensure the quality control and process control of forgings. High quality motorcycle forgings can be obtained by rational design of molds, selection of appropriate materials and use of advanced production equipment. In short, motorcycle forgings, as an important part of motorcycles, are manufactured by forging process and have high strength, good wear resistance and impact resistance. They play an important role in ensuring the safe and reliable operation of motorcycles, providing stable power transmission and sports performance for motorcycles. With the advancement of science and technology and the improvement of manufacturing process, the quality and performance of motorcycle forgings will continue to improve, providing a safer and more comfortable riding experience for riders.