The Piaggio 222478 AF Ring is an original equipment manufacturer (OEM) spare part, meticulously designed for a wide array of Piaggio, Vespa, and Ape scooters and three-wheelers. This crucial component ensures optimal function within the engine or transmission system, providing a precise fit and reliable performance. With confirmed dimensions of 40mm inner diameter, 50mm outer diameter, and 2mm thickness, it meets the exact specifications required for compatible models, guaranteeing durability and consistent operation.