I've tried several styles of air seats from a single layered tube in a
Miyata with no pillow, the double thick dogbone under a Roach cover, a
single layered pillow, and finally a single layered pillow with foam on
top all under a Roach cover.
The single layer seats were too bouncy for me. It also gave me the
feeling of being too disconnected from the unicycle, like the unicycle
was floating under me. I also didn't like the way that when you sat on
the back of the saddle the front would bulge up. It just didn't work
for me.
Then I tried the doubled over dogbone style air pillow. That had all of
the undesirable features of the single layered air seat, only more so.
Then I evolved to a single layer air pillow with foam on top. The foam
deadens the bouncy feeling, helps the seat keep its shape, and gives a
firmer connection to the unicycle. My airseat design is in my 'Airseat
Gallery' (
http://gallery.unicyclist.com/Airseat).
The purpose of the air pillow is to protect the tube from any sharp bits
in the seat, keep the tube from bulging out on the sides (what I call a
seat hernia), keep the tube from bulging up too much in front, and keep
the tube in place.
Something I haven't tried is cutting one of the dogbone pillows in half,
sewing up the open end, and turning the dogbone into a single layered
air pillow. I think that would work, and would be easier than trying to
make your own pillow from scratch.
The final design of the seat will depend on what type of unicycle it is
going on. A Coker seat will usually be a little different than a muni
seat, which will usually be a little different than a trials seat, which
will usually be a little different than a freestyle seat.
Some sort of air pillow is the way to go. But everyone is different,
and what is a perfect seat for one person could be a miserable seat for
another person. Go with what works for you.
--
john_childs - Guinness Mojo
john_childs (at) hotmail (dot) com
Gallery: '' (
http://www.unicyclist.com/gallery/john_childs)
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