UK bike? How can I tell if it's an import or not?

[Firbb]

Hi, how can I tell for sure if a 1976 K6 is a genuine UK bike or not? Is the V5 registration document sufficient proof?

 

[UK K6]

Hi, how can I tell for sure if a 1976 K6 is a genuine UK bike or not? Is the V5 registration document sufficient proof?

The V5 will confirm when it was 1st registered in the UK. So, if that says 1976, it has only lived in the UK. I'd expect that to also mean it was fully UK spec at that time. There's a small chance it was a parallel import. Unlikely.