As of right now, nobody makes LPSO alloys in commercial quantities. Fuji Light Metals has a pilot plant that does small-scale production of extruded strips and plates, but their customers are all researchers and R&D labs.

That said, we can extrapolate from mechanical properties. If we assume that both materials are tubes with the same wall thickness, and that we're looking at T300 carbon fiber (by far the most common type) in epoxy resin vs a standard research grade of LPSO, then:

- The CF will be stiffer

- The CF composite will be slightly less dense (1.6 gm/cc vs. ~1.8 gm/cc)

- The CF composite will have a slightly higher tensile strength, but the difference is very small and could be nonexistent in practice.

- LPSO-Mg will be more damage tolerant -- with better resistance to abrasion and better capacity to flex in a recoverable way in response to extreme mechanical stress. (Cast Mg alloys are undoubtedly worse than CF, but LPSO-Mg is a lot more like an aluminum alloy in this respect. It's a pretty ductile material.)

- LPSO-Mg should in principle be cheaper, though this is likely not going to be the case for a long time.

- LPSO-Mg will have better mechanical damping properties, so might transmit fewer vibrations to the rider.