Scooter Dink50 Cylinder Kit For Dink Super 9 Bet & Win 50cc 39mm/12mm 2 Stroke Engine 12101-KGB5-900 This cylinder kit is designed for use with Dink50, Dink Super 9, and Bet & Win 50cc models.It features a 39mm bore and 12mm piston pin diameter, compatible with 2 stroke engines.The kit includes cylinder, piston, piston rings, and wrist pin, providing all necessary components for engine rebuilds or performance.Engineered to match specifications, it supports and consistent performance.12101-KGB5-900. This component is not from the brand.References to models are used only to indicate fitment.