The GTW 500 was introduced mid 1930s and was still in production in 1949, by which time it had been fitted with telescopic forks and a primitive form of plunger rear suspension. Earlier models had parallelogram rear suspension with friction damping.

GTC 1937-1939

GT 20 1938

Condor 1938-1940

Airone 250 1939-1957

Dondolino 1946-1947

Record 1948

Astore 1949-1953

Alce 1939-1945

Alce V Milizia della Strada 1940

Superalce 1946-1954

Falcone 1950-1953

Falcone Turismo 1953-1954

Falcone Sport 1953-1954

Galletto 1950-1966

Lodola 1956-1966

Zigolo 1953-1966

Moto Guzzi P Series

The P series models included P175 (introduced 1932), 1934 246cc P250 & PE250 (E for Elastico, rear suspension) PES (sport), 1937 PL250 and PLS250 (L for Lamiera, pressed-metal frame - or, according to another source L for Leggera), PLS 1938. The 1939 PES250 was given the Airone name, whilst the two rigid-framed models were named Egretta (lusso) and Ardetta (normale)

P 175 1932-1937

P 250 1934-1937

PE 250 1934-1939 (rear suspension)

PL 250 1937-1939 (pressed metal frame)

PLS 250 1937-1939 (Sport)

PES 250 1938-1939 (rear suspension)

Albatros 250 1938-1947

Ardetta 250 1939-1940