Originally Posted by feijai

Here's the complaint: "best folder under $300" is like saying "best car made in Yugoslavia". It's a logically valid statement to make, but it implies that such a thing would have even a modicum of quality. Which it won't.

There are few decent regular bikes under $300. And folders are more complex devices than regular bikes, with a bit higher cost as a result. If you're restricting yourself to under $300 for a folding bike, you will get what you pay for.