Originally Posted by
T-Mar
FWIW, so far, I haven't seen any Japanese made Bianchi with a Bridgestone serial number format. The vast majority come from one supplier, who I have been unable identify. However, they did periodically outsource to various other contractors, so a Bridgestone manufactured fork would not surprise me.
another possibility i should have mentioned is that tube set may have been manufactured for bridgestone but ended up being used by another manufacturer.