Looks easy, doesn't it? - Just sort of connect-the-dots. Servicing a bike isn't rocket science, so it's always amazing when so many people get it wrong. You do need to have the proper tools, and actually knowing what you're doing can be a real advantage. Would you bring a Ferrari to the neighborhood gas station for an engine rebuild? It sometimes seems that more damage is inflicted to pro bikes in many "family" bike shops than on the race course. If you've got a good bike (and want to keep it that way, or make it better) maybe you should be shopping here.