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, ensures a secure fit, simple to install and remove, saving time and effort. 3. Compatibility Note: The chain sprocket has 9 teeth and is designed to be used specifically with 25H chains. Please verify model compatibility before use. 4. Application Scope: Ideal replacement for worn or damaged original parts, compatible with MY1020 motor engine, helping maintain optimal performance. 5. Lightweight Design: Constructed from metal with a compact size, the sprocket remains lightweight, minimizing added load and energy loss. Item Type: Motor Sprocket Material: Metal Color: As Shown in Picture 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