I'm guessing, non low-profile cantilevers, biopace and U-brake, 1990 ish.
I would go even earlier than that. By 1990 Biopace was pretty dead, and U-brakes were a mid-'80s item.
Moser retired after the 1985 season (I was at his last Giro). I would bet that he moved on to the next phase, cashing in, quickly.
Here's Francesco winning his last stage, the 1985 Giro prologue in Verona.
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