It s a built like that, it is a time trial bike from the late '80s early '90s. Is there an S on the seat stay caps? That must be a huge frame judging from the size if the head tube.
That triple triangle design has been around since the 20s or 30s but never got much attention. To my knowledge Shogun, Nashbar and the GT are the only production bikes to use it.
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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