To find other sizes, you probably need to go to the store. The REI by Baily's Crossroads in VA had a few in stock.
EDIT: A buddy just stopped by REI Bailey's Crossroads and they had a smaller one (~52cm top tube) on the floor plus a few hanging up on the ceiling. Of course, I would just call the local REI if you are interested in a particular size.
Last edited by invisiblehand; 08-26-06 at 05:23 PM.