Hi
I bought a Dahon D7 Speed, 2004 version for £100. This is the bike (EDIT - I'm not allowed to post photos or urls so difficult to show the bike)

I'm only going to be using it occasionally, not commuting everyday, but more for a trip here and there, throw it in the car etc.

Anyway I've noticed the handlepost is quite flexy at the hinge in a forward and back motion while riding. also the handlebars are misaligned slightly to one side. not sure if these things are related. not sure if that flex is normal? I don't have experience with these bikes or any other folders.

Looking on the internet I can't quite seem to find the name of the handleposts on this bike. It seems like they changed the design 2005/06. I'm just wondering if there is a proper problem whether it can be fixed? or whether the style of handlepost I have can be easily changed for the new version from 2005/06? or anything newer again?

I'm really not sure and any help would be appreciated. I'm hoping I haven't made a mistake.

Thank you.