I'm thinking of taking this
series of classes offered by the local bike co-op.
I'm a self taught home mechanic (books, Park tool site, Sheldon Brown, etc) and feel I could learn more, but worry these classes will be too basic.
Some of the things I've done myself include overhaul hub bearings, replace bottom bracket, adjust derailers, fix flats, adjust headset (threaded), and replace the chain.
Of course, I don't know what I don't know. Maybe I've been doing this stuff all wrong.
Paul