Tech question for you guys: I've got a friend who works at casting factory. They make various aluminum and magnesium parts for the automotive and sporting goods industries: steering wheel cores, snowboard boot bindings, wheelchair components, brake fluid reservoirs, etc.--mostly kooky private label (non-branded) components and sub-assemblies; no finished goods. What's stopping my friend from making motorcycle parts out of magnesium? Rocker boxes, foot pegs, finned oil bags and light buckets seem like perfect parts for this material; not under too much stress, etc. Opinions?