Originally posted by hibiscus09
I worry about it also -- they did show me how to change one in the bike shop, but that was last summer!
Practice, practice, practice! My husband "showed" me how to change a tire and replace a tube, but I didn't really get it until I had done it a few times. The first time I did it by myself (at home in the garage) I couldn't do it. (Now granted, I'm not really very mechanically inclined). Be sure you know how to remove and replace your back wheel! As Dogmama said, it's ALWAYS the the back tire!

But I'm really glad I practiced at home so much. I've flatted a few times out on rides and the practice paid off! I ride alone a lot, so if I can't fix my bike, I would have to walk back. I'd also recommend you learn and practice how to fix a chain. That comes in handy sometimes, too!