I have 2 Marlboro Fuji folding mountain bikes from the mid 1990s. One is original and one was slightly modified, see pictures. Been hanging in my garage for over 20 years. One that is not modified i believe needs nothing but a good cleaning. The other needs new innertubes and a good cleaning. Other than that I do not believe they need any other maintenane. I do not live in alb but for 10 dollars for a total of $160.00 I can deliver them to you.