My Mu P8 makes a (sort of) metallic squeaking noise which I think is coming from the frame hinge. The noise happens even when I'm just walking the bike so it has no load on it. I've adjusted the frame latch so it's not loose but I do notice some bare metal showing where paint has worn off on the contact points of the frame-ends.
Is there anything I can adjust or is the frame latch worn or faulty? The bike is less than 2 years old and has done less than 1000 commuting miles.