Barnett Bicycle Institute is probably the world's best school to study and certify for becoming a bicyle mechanic. It also happens to be located in one of the top US cities for cycle training and mountain biking. A little humongous company named REI trains and certifies all of their bicycle mechanics through BBI. It is an amazing facility, with incredible instructors. They have recently been inventing and manufacturing industry specific tools for maintaining bicycles, and are now selling them through their on-line store in their brand new website designed and built by me. :) Everybody at BBI was great to work with, and I enjoyed the project.