Magnesium frames exist. Dawes (responsible for Kirk's bloody catastrophe) and Merida, who are just outright lying to their customers, Zinn and Paketa are or have manufactured in magnesium alloy. I've written before on why I dislike magnesium intensely as a structural material, but it seems that certain bicycles companies, and a massive automobile are pressing ahead with integrating magnesium alloys into stuctural components.

Now, I can understand why a company may use Mg alloy for tubular bicycle frames, on the proviso that the frameset may last a few years at most. But the car consortium intends to make sub-frames and chassis parts from it. They will be exposed to road spray over many years. I bloody cringe.



As for ceramic? Carbon fibres are technically ceramic Well, not quite, but I can't see why the manufacture of fibre-reinforced composites using perhaps partially-stabilized zirconia couldn't be tried. Much tougher fibres than carbon fibre.