"Fitment For predator 212cc GX160 GX200 196cc 6.5hp Dune Buggies Drift Trike Heavy Duty Go Kart Cart Parts. Package include :1 x sprocket hub 1"" Bore 1/4"" Keyway,1 x keyway ,4 x Screw,4 x nut. Installation method: First, align the keyway. Secondly, fix the sprocket with bolts. Then fix the chain groove on the keyway and shaft of the sprocket. Finally, tighten the screws. Product features: Use sturdy steel to make the product more durable and extend its service life. Attention: Please confirm the size before purchasing. If you have any questions about the product, please contact us."