Originally Posted by
ladi
If you're lucky you might get a used one cheaper. (At least here in Germany and in UK there are some on offer.)
But if price is an issue that will probably also exclude the Helix and many other "more stable" alternatives that come to mind. (Bernds, Moulton, Montague Paratrooper, Airnimal)
So basically a stable folding bike needs a budget well over 1500€;
Montagues are stable and there are affordable choices but their wheels are too big and their fold is cumbersome.