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on bending, like that. but if you put a curved fold into a material, then as you change the shape on one side of the fold, it forces the other side into a particular shape, too. and that means, if you lock this side into position, the whole structure becomes rigid. the best example i've seen of that is your french fries container, which is pretty flimsy when you're only using the straight folds on the edge, but there are two curved folds on the bottom, and if you engage those, the whole thing locks into place and your chips don't fall out. the bike that we created now, or the chassis that we've done for the stilride one, compared to a competitor bike, it's a tubular frame, a typical scooter. we created a chassis that's even 50 times stronger or more stiff, rigid than the tubular frame. stilride has bigger ambitions