It's an Adams Trail-A-Bike. It's their mid-range model. The lower range doesn't fold, while the one up from ours has a derailer. I am satisfied with the quality of ours, but as you probably already know, they're heavy. The way it folds is, you pull out the seatpost and remove a sort of cotter pin which allows it to fold roughly in half. This would allow it to fit in a car trunk rather easily, and does not affect the stability of the bike. I tried to figure out something with a bike rack, but thus far have just set it flat in the bed of the truck. Hope this helps!