So I'm between the Trek 520 and the Trek CrossRip Elite. The 520 would be my choice if I was planning on consistently doing multi-day rides, though someone like me (in med school) doesn't have that much time and would only do maybe 1-2 several day rides in the summer months. If I put a rear rack on my bike the most it would ever need to carry is ~25lbs. Would the CrossRip Elite be good for this?

Thanks again guys!