Specification Brand : Jwthee BulletPoint1 : Metal Motor Sprocket: The chain sprocket is made of metal material with has high strength, wear resisting, having good performance for long service life BulletPoint2 : Easy to Use: Manufactured with accurate size and shape design, H shaped chain sprocket has a close fitting, simple for install and removal, saving your time and energy BulletPoint3 : Warm Prompt: The chain sprocket has 9 tooth, can only be used with the 25H chains. When using, it is necessary to pay attention to whether the model meets the requirements BulletPoint4 : Application Scope: 9T 25H engine pinion gear chain sprocket is an ideal replacement for the old or damaged original part, suitable for MY1020 motor engine, providing a higher performance BulletPoint5 : No Burden: 9T 25H motor chain sprocket has small size, which make sprocket have a light weight, will not increase the burden or cause additional energy waste ItemName : 9T 25H Motor Sprocket, H Shaped Engine Pinion Gear Chain Sprocket for MY1020 Motor Engine ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 3 centimeters ItemPackageDimensions_Width : 2 centimeters ItemTypeKeyword : roller-chain-sprockets Manufacturer : Jwthee ModelNumber : Jwtheepverkqaf5s NumberOfItems : 1 PartNumber : Jwtheepverkqaf5s ProductDescription : 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