I ended up with the 520. The Trucker was a great bike indeed, but I felt like I was driving a semi truck, or since I have experience, and own a large a large Class A, BIG motorhome. For my purposes, the 520 was more than enough. My tours are supported so riding fully loaded is not in my wheelhouse (I don't think) and the 520 has performed very well riding across Canada west to east, and west coast to north coast. I don't ride loaded-but I do ride with a loaded large handle bar bag and a loaded trunk, daily on tour. Components are whatever. My 520 has NONE of the original components. I upgraded to a mix of XTR and Ultegra. I also added S&S couplers and a new paint job. It's your oyster, do what you want!