Please read #19, I listed what happened. The parts in question are inside the handlestem. You have to fold it to see them. Like I said before, I would include a picture if I had the bike. The bike is at the shop...now day 11. The main problem was the metal part with the two small springs would not slide easily, got stuck and the plastic part, excuse me delrin.????..that usually rides against the lever got jammed off to the side and mangled a bit. My problem with the plastic part is that I see potential problems with it. I really don't see it, and the two small springs, lasting the test of time. The problem at hand has more to do with the other parts.

I see the whole design as being flimsy. I was at a bike shop last night that had many folders and all the rest seemed to have good, sturdy mechanisms.