Moto Guzzi is the oldest European motorcycle manufacturer in continuous production. Established in 1921 in Mandello del Lario, Italy, they played a historic role in Italy’s motorcycling manufacture, its prominence worldwide in motorcycle racing, and industry innovations—including the first motorcycle center stand, wind tunnel, and eight-cylinder engine. In 2004 Moto Guzzi become a unico azionista, a wholly owned subsidiary, and one of seven brands owned by Piaggio & C. spA. Piaggio is Europe’s largest, and the world’s fourth largest motorcycle manufacturer by unit sales. (from Wikipedia)
Notice how there are two different bikes both named “Moto Guzzi Robin”. There is the tubone (thick tube with gasoline inside) Moto Guzzi Robin , made by Seimm Co., that is identical to the Benelli G2. There is also the stamped sheet metal frame Moto Guzzi Robin, made by Moto Guzzi, that is the US version of the Moto Guzzi Chiù. Both kinds of Robin have the same Motobi (Benelli) engine and wheels as the Benelli G2.
Harpers Moto Guzzi carries some Moto Guzzi moped parts. Myrons only has things that are on other Italian mopeds.