Hello all,
I'm new here so here goas, I'm a doctor commuting to work and back via bus or metro and wish to get a folding bike to complete the commute, I've been eyeballing the Tern P9 for awhile now but then my budget shrinked dramaticlly so I'm into used bikes, I'm looking for the most reliable used bike I can find. I used to be a professional motorcycle mechanic and maintain the bike myself so the occasional tuneup is done in house.

The available dahon models in my country at the moment are the Vitesse D7 or the Eco C3, the occasional Eco C7 and Speed D3 pops up every now and then. So, your thoughts...