That's what we have out here, tweakers and alot of them and yes, they all go around on bikes (given to them for free by the county because even tweakers need to get around
).
And the numbers are growing daily. The one that I ordered off my property a couple of months ago was next door working and he looked like a normal, cleaned up, person; alot different then when I chased him off and he was tweaking.
But, as soon as he got some money (later that day, he was working for the folks doing clean up) he left and about 2 hours came back looking like he rolled in dirt, hair everywhere, etc.. acting really crazy.
With meth (that is what he was on), they can be "normal" one hour and tweaking crazy the next.
Wayne