im with sirpoopalot on this one (awesome name btw, haha) I have no problem demonstraiting repairs i do. I dont care if its changing a flat, truing wheels or rebuilding hubs, whatever. I show alot of people how to take wheels on and off and how to change flats. One thing i wont do and not because im a jerk but because were busy as crap right now is if your curious how to do something and i am not currently doing that type of repair or am not about to do it i cant show you everything you want to know. If you bring your bike in for an overhaul i dont care if you watch and ill explain what im doing but i dont really let people actually help with the work unless your one of those customers that spends as much time in the shop as i do.

If your currious just ask the techs whats up, any cool one will at least explain the steps and/or theory behind what you want to know. Just make sure he doesnt look swamped running between 3-4 customers, try to come in when its slow. Other than that check out parktool.com and sheldon browns site and you can learn all you need to know. I learned 95% of what i know by just trying, messing it up and then figuring out the proper way to do things by researching online. dont be scurred, bikes are simple to work on once you get theory and if you botch a repair usually nothing major will happen from it.