I would like to get a new set of bars for my trek 7100. I like the bike but need just a little more aggressive stance. I sit up just a little to far, so I'm trying to figure out the best route. Not sure but was thinking more of a flat bar with a more aggressive stem. Although drop bars running threw my head as well. Please let me know the best option. Also would it even make sense to have drop bars. Another thing how do I figure out what stem I need?