1. This dual-chain transmission device for gearboxes is suitable for small sports cars and small off-road vehicles and can generally adapt to various vehicle models. It features a dual-chain design for two-stroke and four-stroke engines, providing stable and efficient power transmission for vehicles and ensuring a smoother driving process. 2. This well-crafted gearbox comes in various specifications, including 11T, 13T, 14T, 17T, and 20T gearboxes, which can meet the diverse needs of different users for power and performance. Whether it's for daily rides or off-road challenges, it can bring excellent performance to your vehicle. 3. It has a wide range of applications. Whether it's a small sports car speeding on city streets or a small off-road vehicle shuttling through the wilderness, it can fit perfectly. It is a good option for improving vehicle performance. 4. Its main sales regions cover Africa, Europe, South America, Southeast Asia, North America, Northeast Asia, the Middle East, etc., and it has received positive feedback from users around the world.