do you have better pics of the Bianchi in your posting? also do you have any pics of the Mondiale mentioned in the title?
the pic is rather dark but judging from the decals, the suntour (Quattro?) RD and the Modolo (Quattro?) brakes it looks like an '89/'90 Campione de Italia.
an '86 Mondiale would have different decals, and be equipped with Campi Super Record and an SL not Formula 2 frame.
a '89 CdI sold new for about $620. if the torn seat is an indication of the overall condition I would say it is worth about $200 nif it is ridable.
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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