I need some advise. I have been riding off and on for the past 2 years but more regularly of late. I don't go very fast or very far but sure do enjoy the ride. I now ride 15 miles a day, 5 days a week. My route has mild hills. It takes me 1hr. I want to do more (25-50) who knows maybe more. I want to be realistic. I've been riding a clunky cruising bike (I bought it in 89). I was talked into a trek 7200 hybrid (even though I told the sales gent my speed racer fantasies!). Rode it a few times and it is a nice smooth ride, it feels too tame. I'm now looking at the trek 7200FX and the trek 7500FX. Any recommendations for a rider like me????