I've had a Trek 7.3 FX for about a month now, and I really enjoy it. I have 110 miles on it so far. I did a 21 mile ride yesterday and part of the trip was down and up a steep hill that was about 1 mile long. I hit 33.2 MPH (according to my GPS) on the way down and the bike felt very steady. The 20 MPH wind in my face climbing back up the hill made things painful, but I was still able to make the climb without walking the bike. On flat ground and days with no wind, it's pretty easy to maintain 16 MPH on the 7.3 FX without a lot of effort.