Spring for front sprocket cush drive assembly for Lambretta Cento + J125 + Starstream models (+ adapt. for Lui Vega Cometa if a cush drive is fitted). This is the tall type of spring and is different to the shorter type spring fitted to very early production J50 models.
Although this is a standard Lambretta part, it has also been added to 'Casa Performance' listings on the website as this can be used for an engine upgrade