A. This is a fuel tank cap specially designed for vehicles such as off-road motorcycles, high-performance racing cars, and all-terrain vehicles. It is made of aluminum, which is sturdy and durable, with good corrosion resistance and relatively light weight. This can effectively reduce the vehicle's body weight and improve its performance. B. The fuel tank cap is equipped with a ventilation cap. This design helps to ensure the air pressure balance inside the fuel tank, making the fuel supply smoother and ensuring the stable operation of the vehicle. C. It is suitable for unified vehicle models and matches the original factory. After installation, it can fit the vehicle perfectly, just like a customized one, without worrying about loosening or poor sealing. D. This fuel tank cap is available in multiple specifications, with two installation diameters of 48.5 mm and 49.5 mm. This can meet the needs of different vehicles and provide an accurate matching solution for your car. Whether on the rough mountain roads of off-road adventures, the race tracks of high-speed competitions, or the exciting rides of all-terrain vehicles on the beach, this fuel tank cap will be your reliable companion to ensure your journey.