Originally Posted by
conspiratemus1
...
If you don't have a receipt for an expensive bike, U.S. Customs might get suspicious and assign a value to it much greater than what you say you paid for it.
That is why I keep the receipt for my Rohloff hub and separate receipt for my bike frame as PDF files on my phone.
But the only thing that USA customs was interested in the two times that I came into USA from elsewhere with my bike was the salami sandwich that I had not yet eaten, they get really excited about importing meat products. And the times that I rode my bike into USA from Canada, they did not even ask if I had a salami sandwich.