Guide Rails GY6 Timing Chain Bagged Package 139QMB Timing Chain Kit

Kit Contents: This engine part is a complete scooter timing chain kit for GY6 50cc / 139QMB engines, including a metal timing chain, a chain tensioner, and two long guide rails. Function: Designed as a timing chain set, it helps coordinate engine timing components and supports stable chain movement within the engine assembly. Materials: Built with rubber, iron, and aluminum parts, this GY6 timing chain kit combines long-lasting metal components with supporting materials for practical engine use. Key Components: The 139QMB timing chain kit includes two long guide rails that help guide the chain path, along with a tensioner to maintain proper chain tension. Package Size: Supplied in a compact bagged package measuring about 20 x 15 x 3 cm and weighing 0.21 kg, it is easy to store and handle during repair work.