Honda CB750 Sandcast Only sivulta lainattua:
""The numbering system is certainly an interesting one. Based on my own discussions and observations, I had come to the conclusion that the early pre-production bikes were probably numbered in a sequence (four digits only) starting 1***, and the later type pre-production type (as per the Gold "Brighton show" bike - and of the type seen at Las Vegas) in a sequence (again four digits only) starting 2***. In summary, the pre-production bikes do have their own unique numbering system, which predates the sytem (seven digit) of the production bikes - the first true production spec bike would therfore of been #1000001. There are actually some pictures in a Japanes magazine of engine number 1000005 / frame number 1000010, certainly suggesting that very low serial number bikes were indeed sold."
