My Bianchi was a 1992 Bianchi Thomisus
and had the Biopace on thoes days.
This was a very special Bike on my opinion, I loved mine, I even done some Downhill races on thoes days with this due to lack of €xp€nsiv€ and good Bike
but was really confortable Frame to ride.
That frame is made in a way to bend thoes chainstays but a quite heavy in overhaul, not shure not about the kind of material was made.
The rear braking is amazing and one of my bests ever riden on Retro Bikes beside Maguras(cant be compared due to the system).
I loved the Biopace also
The most dificult and a reason for given away the Bike was because I could not get a good 1" suspension Fork(didnt knew about RetroBike then!!
In Portugal the name of the Bike painted on the Frame and known was the Thomisus, on thoes days costed me €450 something... on todays and Crap Euro whatever so was a medium cost MTB Bike.
Mine was that Purple/Black with the spider webs and I liked it, the paint was very resistent and nice web details on my opinion and taste of thoes days
So I hope now that you didnt paint yours