HAND-BUILT: Motorcycle Bodywork, Part 3 of 5 Your brain, hand tools, and aluminum. Or joy versus despair. Bodywork on motorcycles is built by beating life into flat sheets of pure aluminum alloy. Learn more about hand-building motorcycles at CycleWorld.com. HAND-BUILT: Motorcycle Bodywork, Part 3 of 5 (image) Your brain, hand tools, and aluminum. Or joy…