I have a Dahon Vittese D7 HG, bought in Perú 1 year ago, my handlepost hinge begins to sound like crack , then I supposed that it could be because the friction between steel parts, and adjustment on my handlepost. I had the great idea to put a thinner rubber on the joint press.
Now, I am feeling some movements in my handlepost pivot point (please see photo). Could it be normal? I dont remember that, because after the rubber, I feel totally silence in my bike.