IMASAF 21.38.77 Silenziatore posteriore

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

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

GS A 1.3 (1978 - 1986) 1299 ccm, 48 kw, 65 hp

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

GS Break A 1.3 (1979 - 1986) 1299 ccm, 48 kw, 65 hp

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