Originally Posted by
Bianchigirll
...I wouldn't be surprised if the OPs bike was, if a Bianchi at all, the Turquoise '87 Brava rebadged or even one of the lower blue Strada bikes.
A 1987 Brava is unlikely, as the serial numbers that I have been able to collect for this model and year have all indicated Japanese manufacture. Regardless, it's pretty easy to distinguish a 1987 Brava frame from a 1987 Strada frame, as the former has recesses for Allen key brake bolts and a dropout with an integral derailleur hanger, while the latter doesn't have brake nut recesses and requires a claw adapter to mount the derailleur to the dropout.