Does anyone know of a serial number list, or other means, that can be used to
date an older Bianchi frame? Mine is a Competizione model (identical to a
Specialissima except that it has SP tubing instead of SL tubing) that must be
post 1960 as it has the blue Campagnolo Gruppo Record decal. It has the long
drop outs with a small hole over where the derailleur threads in. What year
did the drop outs change to the ones without this hole? What was it for?
Stevan Thomas
Alameda, CA