Rev.Chuck

I am not familiar with every bike we offer and have no problem looking it up.
Same with repair. I don't know the procedure for every fork overhaul and will tell a customer up front that I intend to read theu the pdfs before I touch the thing just incase there is an unusual aspect to the repair.

i just looked that bike up, it is pretty buried in the Trek site. It looks like the only steel bike they offer. I have one of their lugged bikes, 531 reynolds from the eighties, nice ride.
JoshFrank brought up the longhaultrucker. That and the crosscheck are made by Surly and any bike shop(most shops do deal with them) that deals with Quality can get them. They are both very much like the 520, steel bikes aimed for the distance rider that wants a comfortable ride and the ability to run loaded.