Hello,

During the last few weeks I had to tighten my Dahon handlepost clamp as the lever felt too easy to close. I just tightened the screw that goes against the teflon block and forgot about it until today.

While I was at the train with my folded bike I noticed that one of the two bolts that hold the sliding part of the clamp was sticking out. Obviously, as I felt it was dangerous riding it this way, I tightened it and then had to untighten a bit the teflon block screw to be able to close the clamp.

This is the part I'm talking about, the bolt that came loose is one of the two bolts at the top (the ones which doesn't have an arrow pointing to them):



BTW, this is not my handlepost... mine is a lot cleaner

Currently the clamp closes ok, but I'm not sure how to prevent the two bolts from loosening. If I tighten them all the way, the sliding part can't move and the clamp becomes inoperable. If I leave them loose enough for the clamp to work, they're also loose enough to become loose over time as it happened. How am I supposed to prevent this?

Thanks!