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Douglas - (125DR, 232L2, Vespa, 2 port, 2 stroke) Year 1961 (bore 52.5mm) compression height 40.9mm, piston...
Douglas - 124cc (Vespa, Standard, 42/L2) Year 1959-61, compression ratio 6.5:1 (bore 54mm +.040"") compression...
Douglas - 124cc (Vespa, Standard, 42/L2) Year 1959-61, compression ratio 6.5:1 (bore 54mm +.060"") compression...
Douglas - 124cc (Vespa, Standard, 42/L2) Year 1959-61, compression ratio 6.5:1 (bore 54mm +.8mm) compression...
Douglas - 124cc (Vespa, Standard, 42/L2) Year 1959-61, compression ratio 6.5:1 (bore 54mm +1mm) compression...
Douglas - 124cc (Vespa, Standard, 42/L2) Year 1959-61, compression ratio 6.5:1 (bore 54mm) compression...
Douglas - 125cc (Vespa, G) Year: 1951-54 (bore 56.5mm +.015"") compression height 44.5mm, piston length...
Douglas - 125cc (Vespa, G) Year: 1951-54 (bore 56.5mm +.020"") compression height 44.5mm, piston length...
Douglas - 125cc (Vespa, G) Year: 1951-54 (bore 56.5mm +.030"") compression height 44.5mm, piston length...
Douglas - 125cc (Vespa, G) Year: 1951-54 (bore 56.5mm +.040"") compression height 44.5mm, piston length...
Douglas - 125cc (Vespa, G) Year: 1951-54 (bore 56.5mm +.060"") compression height 44.5mm, piston length...
Douglas - 125cc (Vespa, G) Year: 1951-54 (bore 56.5mm) compression height 44.5mm, piston length 73.5mm...
Douglas - 145.6cc (Vespa Clubman) Year: 1958-59 (bore 57mm +.020"") compression height 42mm, piston length...
Douglas - 145.6cc (Vespa Clubman) Year: 1958-59 (bore 57mm +.030"") compression height 42mm, piston length...
Douglas - 145.6cc (Vespa Clubman) Year: 1958-59 (bore 57mm +.040"") compression height 42mm, piston length...
Douglas - 145.6cc (Vespa Clubman) Year: 1958-59 (bore 57mm +.060"") compression height 42mm, piston length...
Douglas - 145.6cc (Vespa Clubman) Year: 1958-59 (bore 57mm +.4mm) compression height 42mm, piston length...
Douglas - 145.6cc (Vespa Clubman) Year: 1958-59 (bore 57mm) compression height 42mm, piston length 79mm...
Douglas - 145.6cc (Vespa GS, 2 stroke, 2 port) Year 1956-58 (bore 57mm+.030"")compression height 37mm,...
Douglas - 145.6cc (Vespa GS, 2 stroke, 2 port) Year 1956-58 (bore 57mm+.040"")compression height 37mm,...
Douglas - 145.6cc (Vespa GS, 2 stroke, 2 port) Year 1956-58 (bore 57mm+.060"")compression height 37mm,...
Douglas - 145.6cc (Vespa GS, 2 stroke, 2 port) Year 1956-58 (bore 57mm) compression height 37mm, piston...
Douglas - 145cc (Vespa 150, VBA) Year: 1959-62, 2 Port, compression ratio 6.5:1 (bore 57mm +.020"") compression...
Douglas - 145cc (Vespa 150, VBA) Year: 1959-62, 2 Port, compression ratio 6.5:1 (bore 57mm +.030"") compression...
Douglas - 145cc (Vespa 150, VBA) Year: 1959-62, 2 Port, compression ratio 6.5:1 (bore 57mm +.040"") compression...
Douglas - 145cc (Vespa 150, VBA) Year: 1959-62, 2 Port, compression ratio 6.5:1 (bore 57mm +.6mm) compression...
Douglas - 145cc (Vespa 150, VBA) Year: 1959-62, 2 Port, compression ratio 6.5:1 (bore 57mm +1mm) compression...
Douglas - 145cc (Vespa 150, VBA) Year: 1959-62, 2 Port, compression ratio 6.5:1 (bore 57mm) compression...
Douglas - 145cc (Vespa GS) 2 port, 2 stroke, Year 1955 (bore 57mm +.020"") compression height 37mm, piston...
Douglas - 145cc (Vespa GS) 2 port, 2 stroke, Year 1955 (bore 57mm +.030"") compression height 37mm, piston...
Douglas - 145cc (Vespa GS) 2 port, 2 stroke, Year 1955 (bore 57mm +.040"") compression height 37mm, piston...
Douglas - 145cc (Vespa GS) 2 port, 2 stroke, Year 1955 (bore 57mm +.060"") compression height 37mm, piston...
Douglas - 145cc (Vespa GS) 2 port, 2 stroke, Year 1955 (bore 57mm) compression height 37mm, piston length...
Douglas - 348cc OHV (Dragonfly) Year: 1955-57, compression ratio 8:1, ring below pin. (bore 60.8mm +.020"")...
Douglas - 348cc OHV (Dragonfly) Year: 1955-57, compression ratio 8:1, ring below pin. (bore 60.8mm +.030"")...
Douglas - 348cc OHV (Dragonfly) Year: 1955-57, compression ratio 8:1, ring below pin. (bore 60.8mm +.040"")...
Douglas - 348cc OHV (Dragonfly) Year: 1955-57, compression ratio 8:1, ring below pin. (bore 60.8mm +.060"")...
Douglas - 348cc OHV (Dragonfly) Year: 1955-57, compression ratio 8:1, ring below pin. (bore 60.8mm) compression...
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