The 0 wheel "unicycle" that was mentioned is a standard unicycle minus
spokes, rim, tube and tire. It is "ridden" with at least one foot on
the floor at all times, unless one performs a hop on it!
>The part I haven't figured out yet is the 1/2 cycle derivatives - is this a
>rim without a tire or what?
A 1/2 wheel is a unicycle axle, 1/2 rim welded or bolted to a straight
bar forming a half circle shape from the side. It also has a little
more than 1/2 a tire, with the ends bolted down to the rim/bar ends.
Add to this at least 1/2 set of spokes (I don't recall how it was
spoked up - maybe as best as possible) and 1/2 tube glued shut at both
ends I presume. It can be used in a 1/2, 1 1/2, 2 1/2 wheel unicycle
as the top most wheel (half wheel).
I personally think the 1 1/2 wheel would be the most fun to ride. It
might be fun to coast on it with the 1/2 wheel in the upper position,
out of contact with the bottom wheel!
Stay on Top of all these great Toys,
Ken Fuchs <kfuchs@winternet.com>