Piaggio Si

The Piaggio Si is a moped produced by the Italian manufacturer Piaggio at Pontedera. It received homologation on 20 November 1978 and was presented in Genoa on 1 February 1979, and in North America it was sold under the Piaggio Si name by the American division of Piaggio, Vespa of America Corporation. Its engine was derived from that of the contemporary Piaggio Ciao, differing in the cylinder head and longer cooling fins, while the chassis added a telescopic front fork, a rear monoshock, a longer and more comfortable saddle with a small compartment beneath it and four-spoke wheels. A version with the Variomatic speed variator made hills easier to climb. The first series ran from 1979 to 1987 and brought the Montecarlo, Tuttorosso and Ecology System versions, followed by the electronic-ignition series of 1987 to 1991 and the FL2 series of 1992 to 2001, which included the Mix and Miami versions. It replaced the Piaggio Boxer.