1. This small sprocket and chainring for small racing motorcycle engines are specifically designed for off-road motorcycle modifications, featuring excellent performance and a variety of specifications. 2. In terms of design, it has a delicate structure and can well meet the modification needs of off-road motorcycles, providing strong support for the motorcycle's power transmission and performance improvement. 3. It has a relatively wide range of applications and is suitable for various off-road motorcycle modification scenarios. It can effectively improve the motorcycle's power output, allowing riders to experience stronger power and a smoother handling experience during off-road riding. 4. In terms of specifications, the 420 type offers a variety of choices in different tooth numbers and sizes, with the tooth number of the 420 type ranging from 10 to 19 teeth. Whether you are pursuing specific power performance or meeting different modification needs, you can find suitable small sprockets and chainrings here. It is quite popular in regions such as Africa, Europe, South America, Southeast Asia, North America, Northeast Asia, and the Middle East, and is a good choice for off-road motorcycle enthusiasts to make modifications.