The story so far......
A guy I work with has 2 identical vintage Bianchi bikes,one of which he is willing to sell.The bike I can have is repainted and has no decals.The pics below are of the identical frame in its original state,ie. paint and decals.His Italian father purchased and brought them back from Italy(to Australia) in the mid 70's (he thinks).
There are unfortunately no tube set stickers anywhere on the frame.
Seatpost internal diameter is 27mm(measured with ruler not micrometer)
B/B shell is 68mm across.
Frame is quite light and both top tube and head stem to B/B tube give that nice ting when flicked.
Rear part of frame seems to be duller which makes me wonder if just the main triangle is cro mo.
did Bianchi do this with frames?
Would it be japanese or Italian made?
Dropout is stamped Bianchi
Head tube with serial 7M34219
Any help with Id'ing model, era, tubeset or origin would be apreciated.
Thanks in advance, Dave