I have an 1988 trek 360. It probably needs a little lovin' to make it ride like it could. But I use it a lot- for a three year period I was using it for commuting everyday: ~150 hard miles each week regardless of rain, mud, or snow. I probably should have a bike set aside for faster riding if I plan to get more serious into road-biking or triathalons. (or should I?). Maybe the answer to all of this is to just man up on my trusty old trek and only blame myself for feeling sluggish.