Polini aluminum cylinder with 221ccm (60mm long stroke) for Vespa PX200 (P1400084)
Polini's plan to bring the well-known 210cc aluminum cylinder for the PX to the market in a long-stroke version (we reported) is finally taking shape. The new cylinder, the layout of which is presumably the familiar 210ccm cylinder (but with a longer raceway), is fitted with a special cylinder head [...]