After three slow, miserable trips riding to work on my new Trek 7500 hybrid, I was ready to sell it on craigslist and give up commuting forever. Then my roommate told me to check out her Trek mountain bike. It was so fast and easy to ride! So I picked up the back of each bike to spin the back wheels. My back wheel spun sluggishly a few times and stopped. The mountain bike's back wheel spun rapidly for much longer. So I'm guessing my hubs are too tight.
Has anyone else had an experience like this? I obviously know very little about bikes (a few days ago I didn't even know what a hub was), but I didn't have any idea that this could be a problem. I just thought I was incredibly out of shape. So now I'm wondering if I could be right and if so, if other people know about this potential problem. I've since read that many manufacturers overtighten the hubs.