All I can do is change my tires and lube my chain. Everything else I take it to the bike shop but I have the books and some good online sorces I'm just scared that I would really mess something up.
On the other hand I can honestly say other than a spoke breaking I've not had any problems with my bike. Regular tune ups at the LBS and she's good to go another several hundred miles. In between times I lube the chain and clean her up really purdy.
Good on you for wanting to learn how to fix your bike, I used to love to do mechanical stuff and get my hands greasy but I also usually had a brother or two right with me showing me how to wrench, don't have that opition any longer, sigh. Have fun and please share what you've learned!
Life is like a 10 speed bike, we all have gears we never use.
Charles Schultz
"The bicycle is just as good company as most husbands and, when it gets old and shabby, a woman can dispose of it and get a new one without shocking the entire community." — Ann Strong, Minneapolis Tribune, 1895