Interesting one. I can’t narrow down the model, but it does have Benotto logo seatstay tops. Maybe Italian built, maybe Mexican, maybe ishiwata, maybe columbus…maybe hi-ten…Comparing images it could be a Modelo 2500 or as easily a Modelo 800. Fork looks non-original.
Too many maybes for me and a long long way away, someone else might want it!
Benotto bicycle frame and fork | Bicycles | Gumtree Australia Stirling Area - Yokine