Gdnecad Chain Roller Tensioner with Spring, Heavy Duty Iron Chain Adjuster Motorcycle Sprocket Guide, Rustproof Chains Tensioner for 110cc 125cc 140cc Dirt Bike ATV Mini Bike (Black)

["Package Includes: This kit includes 1 bracket, 1 clip spring, 1 screw, and 2 rollers, bringing complete parts for your use. Each roller measures 1.38 × 1.38 × 1.03 inches. The bracket reaches 3.46 inches in length, and the installation hole carries a 0.59-inch inner diameter with a 0.75-inch outer diameter","Practical Function: This chain roller tensioner helps to maintain proper chain tension and guides its path to protect both chain and sprocket, extending their service time. It also supports smoother operation, giving your motorcycle safer overall performance and improving transmission stability","Thoughtful Design: This spring structure applies constant pressure to press the roller against the chain's loose side, helping to keep the chain from sagging or skipping. In addition, the roller separates the chain and swingarm to reduce wear and noise while keeping movement steady","Quality Material: Made from premium plastic, this roller resists abrasion and avoids breakage for long-term service. This bracket uses quality iron that offers solid hardness while resisting scratches. It also protects against rust to provide stable and dependable performance","Wide Application: This set supports many small vehicles with 110cc, 125cc, or 140cc engines, such as mini bikes, dirt bikes, ATVs, and pit bikes. It works with models like XR50, CRF50, SSR140, and CT100U. Please confirm that your motorcycle matches these specifications before purchase"]