Well if we are going to keep this OT line going I was thinking about the bike a kid I went to school with and the bikes he and one of his friends built. It even got them a picture in the local newspaper. Wish I had a picture of those bikes but I'll try to describe what I recall.
They started with your basic 26 inch bikes and the first thing they did was to flip the frame upside down! This put the foot crank up much higher. Then the fabricated a support for the seat to get it up to a height compatible to the new height of the foot crank and then the same thing to extend the tube for the handle bars.
They actually did manage to ride them some but as you can imagine starting and stopping was the tricky part as you needed either a step ladder or a steep bank in just the right place!
Last i knew the one kid was a retired machinist who ran a small motorcycle shop out of his garage dealing mainly with 1960's vintage English motorcycles.
Did a little searching online and found one similar, this one has a tiller for steering but I seem to recall bike kid I knew had more or less normal handle bars!
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