The Puch 250 SG was produced from 1954 to 1969. Total production was over almost 36,000, plus another 850 of the SG-A (1956-1964). Specification: 45x78mm, 248cc, 13.8PS, CR 6.2:1, weight 139kg (151kg SG-A), electric Puch 6v (Bosch 12v SG-A). Source: FB Group Motorräder, Zeitdokumente , Fotos, see German Resources