Your bike looks fun, I like it a lot. I have seen the tall version of it, a sort of dare devil sport :- )
Magnesium burns, I didn't think of that. I looked it up and it's 2/3 of the weight of aluminium, I assume it's still hard to tell by just looking at it and holding it. I have a black cast iron 201 and a beige aluminium 201, the weight difference is very noticeable. I struggled a lot to carry my cast iron in it's small table down the stairs, but the aluminium 201 in a different table ( about the same size) was an easy job. I didin't know they every made them in magnesium. Does it light up as easily as magnesium ribbons do?