and similar classic models with bigger engine kits and various parts upgrades. Many companies like Polini, Pinasco and Malossi make an array of aftermarket parts starting from suspension, exhaust to engine casing/kits. These upgrades can increase the performance of the PX and similar models significantly. PX125 and PX150 models are often upgraded with 177cc engine kits and PX200 models are often upgraded to 210cc or 215cc. These upgrades are often complemented with a bigger carburetor, high flow fuel taps, and engine casing modification (ex. modifying a rotary valve case to accept a reed valve). Suspension, lighting, other performance modifications, and cosmetic add-ons are also popular and commonly available through many specialized online retailers. Comparison of Various P Series Models The same chassis number applies to the Arcobaleno (or Lusso) models. This model was in production from 1985 and marketed exclusively in Germany. Notes Motor scooters Piaggio Vespa