I know nothing about the Jamis but commute 19 miles a day on a LHT. I love it. Bar end shifters are great. My only beef with them is standing up to pedal, sometimes my "massive quads" hit the shifters. Not much of a problem for me, I am rarely out of the saddle. The LHT will take some big tires if needed. I have the 26" wheels on mine. I purchased it with the idea that I would only have one road style bike, commuting, touring, grocery getting. I am really happy with it. That said, I am now considering a single speed/fixed just to add some variety.