> Off the top of my head. Steel frame, can be repaired / modified with any old welder. Designed so it can be taken apart with the minimum of generic tools. Standard bearings, brake blocks etc (probably brake blocks that you can shove some piece of old tyre in).
So basically just your average cheap crappy Halfords Bike-Shaped Object type "bike"?
You do know that it is possible to buy a durable, heavy duty steel bicycle that is not department store trash, right? We have hundreds of these were I work.
No. I politely covered BSOs
"very cheap bikes that aren't really designed for long term use"
You want cheap and reliable, not cheap with a load of doodads to make it seem expensive.