SIGAM 20407 Silenziatore centrale

GS 1.0 (1970 - 1977) 1015 ccm, 40 kw, 54 hp

GS 1.1 (1977 - 1980) 1129 ccm, 40 kw, 54 hp

GS 1.1 (1977 - 1981) 1129 ccm, 42 kw, 57 hp

GS 1.2 (1973 - 1979) 1222 ccm, 43 kw, 58 hp

GS X 2 (1975 - 1979) 1222 ccm, 46 kw, 63 hp

GS Break 1.0 (1971 - 1977) 1015 ccm, 40 kw, 54 hp

GS Break 1.1 (1977 - 1980) 1129 ccm, 40 kw, 54 hp

GS Break A 1.2 (1973 - 1979) 1222 ccm, 43 kw, 58 hp

GS Break A Spezial (1980 - 1982) 1129 ccm, 42 kw, 57 hp