Piston ring

A piston ring is a small metal ring that runs around the piston in the cylinder of your scooter or moped. The ring ensures that the piston fits snugly against the cylinder wall, preventing combustion gases from escaping past the piston. A worn or broken piston ring leads to power loss, high oil consumption, or smoke from the exhaust.

When choosing a piston ring, you must pay attention to the diameter and thickness that correspond to your piston size, and to the engine model — many rings are specific to Piaggio, Minarelli, or other engines. On this page, you will find piston rings for a wide range of 50cc scooters and mopeds from brands such as Piaggio, Aprilia, Malaguti, and Yamaha.