which 'Replacement Parts List' A50 R

[Blackbird]

Hi, I am looking for the correct 'Replacement Parts list' for my BSA A50 Royal Star. Is it probably cat 5145 (1969) or even 5707 (1970)? The engine Nr. is --> XC 16476 A50R

[JulianS]

The C indicates 1969 season.

[Blackbird]

Thx very much for the answer Julian. In the meantime I have found an interisting link of 'Idetification serial numbers of BSA 1932-1972'. May be that helps other owners to identify the age.

https://www.bsaunitsingles.com/Archives/Owners_Manuals/BSA%20serial%20numbers%201923-1972%20x.pdf