Professional bike mechanics, look away now. Lou of HouToLou.com decided to hack up and on old bike into what he describes as the world's first offset unicycle and made a video of the process that will set your teeth on edge if you've ever wielded a spanner.
They say that to a man with a hammer, everything looks like a nail. To a man with an angle grinder, everything looks like it's in too few pieces.
That includes the donor bike's frame, which Lou butchers to leave only the bits he needs, and the chain, which he shortens because he only needs a single gear ratio. Yes, he shortens it with an angle grinder.

He also needs a non-freewheeling drive, but rather than swap out the freewheel for a fixed sprocket he just ties it to the spokes with baling twine.
To his credit, Lou manages to build the unicycle almost entirely from bits of the donor bike, though we're not sure how long it'll last, as it's held together mostly with a few screws.
HT to Hackaday.com

2 thoughts on “Video: How to make an offset unicycle”
Angle grinder? Angle
Angle grinder? Angle grinder? What’s wrong with a hack – saw?
Hardly the world’s first. I
Hardly the world’s first. I rode this one in 1995 and the one shown at http://www.unicycling.com/garage/recumben.htm in 1996. I do like the way he’s done it, though.