I inherited a 22" yellow Montagna Mountain Sport in 1999 from my father-in-law (was used by my brother-in-law). It had a bike shop sticker (The Bicycle Shope, Carmichael, CA). Here's a restoration/conversion album of mine:
https://photos.app.goo.gl/6kixzjaYuC2yc3Ps9 Also, here's a fb ad of one being sold where a chap by the name of Kevin Dwyer says he designed this bike:
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There's nothing really special about it, I just liked the geometry, fit my 6'3" frame well. I also like the unique welded on chain stay fin called "Cuda Finn System".