FLCC> seatpost dia.

[Anna Geraldine Barensfeld]

Another Q for the cycling community (good resource, what can I say):

I need a taller seatpost for an old Free Spirit BMX bike, but the diameter
is very irregular - 21.8mm. Sheldon Brown doesn't list anything like this
on his seatpost size database
(http://www.sheldonbrown.com/seatpost_sizes.html), and I cannot locate any
info elsewhere. The post is only about 7" tall, I'm looking for something
several inches to significantly taller. I doubt that anything like a
21.8mm seatpost is actually available these days, but if anyone knows of
one, please let me know!

Thanks
~Anna