First real mountain bike was a 1984 Fuji Mt. Fuji, bought in 1994 at a pawn shop for $125. It was stolen in 2007 damn it.
Prior to that, a C-Ito 10 speed, a few 50's 60's Schwinn, a Stingray knock-off ... this was in the late 60's early 70's, before mountain bikes were invented, so my friends and I rode what we had through the woods and such.
__________________
"Whenever I see an adult riding a bicycle, I know there is hope for mankind." (H. G. Wells)