If there's a duplicate VIN in use, I'd want to know how many are out there, and how many are in the U.S. If it's only one other and it's in New Zealand, I might forget about that notification. If you go that route, use an OAN (owner applied number) to differentiate your steed from the other. I'm sure you can think of a prominent place for an OAN, and how to apply one. Include your OAN with any registration and insurance information, and it ought to be fine.
If UBCO tells you that Forrest was having a bad week and he stamp 53 bikes in the U.S. with the same VIN, that may cause problems at the DMV and with an insurer. The official solution may be as simple as showing the documentation from the manufacturer, but I'd still add an OAN to further differentiate your bike from another, and have that documented with the DMV, too.
If UBCO tells you that Forrest was having a bad week and he stamp 53 bikes in the U.S. with the same VIN, that may cause problems at the DMV and with an insurer. The official solution may be as simple as showing the documentation from the manufacturer, but I'd still add an OAN to further differentiate your bike from another, and have that documented with the DMV, too.
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