I just got a Trek 520, which I had viewed as my backup bike if I couldn't get my hands on a Rocky Mountain Sherpa, my first choice (I did get a Sherpa but it was too small so I needed to go a different route). All I can say is I feel like a fool for ever considering the 520 a backup bike. This is one sweet rig. The black color is awesome looking and it rides like an absolute dream. I've been reading these forums for a while to research touring bikes and I'm somewhat surprised the reviews on the 520 seem somewhat mixed. This is one great bike.