Features: 1. Metal Material: The chain sprocket is made of metal material with high strength and wear resistance, offering reliable performance for extended service life. 2. Easy to Use: Precisely manufactured with accurate dimensions and shape, ensuring a secure fit and straightforward installation and removal, saving time and effort. 3. Warm Prompt: The chain sprocket has 9 teeth and is compatible only with 25H chains. Please verify model compatibility before use. 4. Application Scope: Ideal replacement for worn or damaged original parts, designed for use with MY1020 motor engines, helping maintain optimal performance. 5. Lightweight Design: Constructed from metal with a compact size, the sprocket remains lightweight, minimizing added load and energy consumption. Item Type: Motor Sprocket Material: Metal Color: As Picture Shown Application: for MY1020 Motor Engine Product Size: Thickness: Approx. 4mm / 0.2in, Inner Diameter: Approx. 10mm / 0.4in, Inner Width: Approx. 8.5mm / 0.3in Gross Weight: Approx. 5g / 0.2oz Package Includes: 1 x Motor Sprocket