I have a TREK 3900 and I live in Bahrain. I am trying to get a bike rack that I can put on it and carry stuff around and I don't think a seat-post mounted rack will suffice. I bought a bikerack but there are no pre-drilled holes for the support posts to connect to (there are small ones but they are not for this purpose). Does anyone know how to connect one to the bike or know of a rack made for the 3900? Thanks from the Desert!!!