Coincidentally, I just recently pulled out this Dahon Mariner from storage lol. Bought it used about 10 years ago and I think it's from the early 90's. It came with a 5 speed that I upgraded to a 6 speed, then 7 speed, then added an electric motor that is now on my Boardwalk S1. I reallly like the frame style but the headset is so high maintenance. Haven't fiddled around with it for a good 5 yrs, but doing some maintenance now so lots of the parts are stripped. Originally I thought these came with stainless steel frames, but I believe it's only the hardware (hinge pins, screws, etc) that are stainless.