Briefcase unicycle

Yeah thats what I was thiniking. We figured we would need about a 6 inch
think brief case. I think the geared up mini giraffe is the way to go
though.

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thejuggler24 - Learning one scar at a time
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I've been wanting a mini giraffe for travelling. Something like a 16" wheel,
with folding/removable pedals & quick release on the wheel. It may be
easier/smaller to use a _shaft drive_ instead of a chain drive. The shaft
would separate as you pulled the wheel out. It should be possible to
make this thing ridable in about a minute. If it were geared 2:1, it would
make a decent commuting vehicle to/from a train station.

The reason for the minigiraffe isn't for the height, but for the gearing.
If you bent the seatpost to put the pedals out to the front or to the
rear, you could keep the overall height to about the same as a
20-24" standard uni.

johnfoss said:

It sounds like nobody has done much measuring yet. The key problem area
is *width*. Unicycle axles are probably twice as wide as a standard
briefcase. So without re-engineering the whole axle & crank system, you
might want to start off by thinking in terms of a giraffe wheel.

Alexander Frisch of the Moscow Circus used to enter the ring with a
suitcase, from which he produced a little unicycle and rode it around.
But this was a larger suitcase. The unicycle had something like a 12"
wheel.

My assumption is that you want a "useful" unicycle when this is done.
This means something bigger than 12", or even 16". Without gearing, this
means a wheel taller than a briefcase. So, a geared-up mini-giraffe. It
will be a bumpy ride, but you should be able to gear it to 20" or even
larger. Just watch out for bumps!

I'd start with the basic concept of one of these:
http://tinyurl.com/ydh8

Then you'd probably want to figure out a wheel that's as big as you can
fit in there, because those little wheels don't ride very smooth.

Heres one GB used to make thats similar.
[image:
http://www.unicycle.com/images/catalog/chaindriven/UNGB4Mini.jpg]

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