I own one too. I love how light it is and the kevlar drive belt. Less risk somebody's cloth get dirty when in a public transportation. What I don't like is the rear wheel not being standard. I've heard two different info on if such are available when it is time to replace it.
So when I read that one US version had a a lever-operated 3-speed Sturmey-Archer hub that is given me hope. That would be cool to have.
but the bad thing is that then one need brakes by hand then which me as a weakling is not used to. All old bikes me have owned always had the european back pedaling brake system. 55 years of habit is not easy to relearn.
I talked to one of the three guys that was producing it. One of them claimed the drive belt is easy to find so I have to trust him on that info. He also knew that the wheels should be able to find.
Maybe the 12" wheels of a Mobiky is possible to use? That one is three gears in hub I guess.
To Mod. Yes the thread is an old one but to us that are interested in second hand folding bikes this is an interesting vintage folder.
I had great problem keeping balance on Strida but have no problem with riding the Microbike. Easy as pancake compared to the old Strida I tested.