The problem I have is that I can't take it anywhere. Once the game allowed me to use the bike, I was supposed to go to Capital Knot City but there's a mountain in the way that the bike can't traverse. How should I use the bike properly? Should I just leave it before the mountain/hill, traverse on foot from there, then hop on the bike again on the way back? I didn't do this because I thought the bike would disappear (stolen by MULEs or other porters maybe).

(I feel so stupid. I painstakingly managed to take the bike to Capital Knot City somehow by hopping and jumping at whatnot. But I can't bring it back from there because of the adverse terrain. So I stuffed it into the Capital garage and am now walking around like a jabronj.)