the stem of my MU P8 has come loose. I've tightened it but it works it's way loose after a short time. If the two screws are tightened all the way it cannot get into the closed position. there's a lot of play in the latch that locks the stem into position. I noticed that there's two screws on the side of the catch but thought I would ask before I started toying with those.

I just checked my wife's bike which is the same model but the locking mechanism is a different design.

Thanks
Dan

https://www.thorusa.com/dahon/technic...bardetails.htm
those two big screws need to be loose ... you can adjust the little middle pin out in order to put a little more pressureon the cam.. small adjustments otherwise u break the block
thor

Doesn't all Mus have the latest latch with external locking clamp?

https://www.thorusa.com/dahon/technical/recall.pdf

different handlepost designs .... Dahon has switched back to the radius 3 for most of their models, some radius 5 still can be found but the gist is radius 3 ...

this is the kind of problem that drove me nuts with the helios.

Use some thread lock on the screws that get loose, or torque down to specs.

Thanks for the replies. I adjusted the pin and that seems to have fixed it. I'll test ride longer tomorrow.