Definitely the late ‘80s early ‘90s. All the great innovations in steel with MS, TSX, and the great Nivachrome tubes like MAX, EL, EL OS, which was the basis for MiniMAX, Genuis, and so on.
MAX
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“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk