I just purchased a repainted road bike that the owner claims is a late-'80s Italian Bertoni. He produced a black-anodized pantograped TTT stem from his garage, but nowhere else does the bike say "Bertoni." Thing is, looking at the various photos online and the 1987 Bertoni catalog at Velobase.com, there are a few "inconsistencies," i.e. my bike’s dropouts don’t say “Columbus; it has rack mounts at the dropouts; its brake bridge is different; its chainstays attach to the seat tube differently; and it has bolt-on (rather than brazed) cable guides. There's a seven-digit serial number engraved in the bottom bracket (“5786195”), but that's the only i.d.

The drivetrain was upgraded to a Shimano 8-speed, but the rest is a hodge-podge with a Bontrager saddle and stem, Cannondale fat bar, Dia-Compe brakes, Sakae crank and Tektro levers. It's a sweet-riding bike that I would like to restore, but I'd like to know what it is before I sink a bunch more money into it.