These people (below) in Guatemala City have (had) loads of good travel bikes. I suggested once that they should try and advertise on this site, but I don't think they understood, and instead posted to the guestbook.
I would check them out!
Name: Ana Gabriela Pantoja
Location: GUATEMALA, GUATE GUATEMALA
Date: Wednesday, February 6, 2002 at 17:35:08 (GMT-5 hrs.)
HELLO WE ARE THE MOST COMPLETE MOTORCYCLE STORE IN GUATEMALA, WE SELL NEW AND USED MOTORCYCLES OF ALMOST ANY BRAND, AND ALSO WE HAVE IN STOCK ALMOST EVERY ACCESORIE FOR YOUR BIKE, PLEASE FEEL FREE TO CONTACT US AT: 011-502-3609545, 011-502-3609522 OR FAX US AT 011-502-3321017, OUR EMAIL IS motopunto at intelent.net.gt. p.s.: This is a great web