I've put quite a few miles on my Swift since I got it last week (it's an addictive bike and it's summer vacation). I've taken a couple of 20 mile runs with it already. Still no complaints. I may even try to use it for an upcoming bike tour with a 60 mile option, just for fun. I do find (as several posters have mentioned) that when climbing hills low gear is not always low enough. What options do I have as far as swapping out parts? I'm a newbie in the mechanical aspects of bikes, though I do ride quite often.