I just repainted my fixed gear conversion, and curiosity struck me. What is it? The frame itself doesn't seem to have any particularly unusual characteristics. The serial number appears on the top of the BB shell, and is "72745" (although it may have had another digit which is no longer visible.) Rear dropouts and forks ends read "Brev Campagnolo". The stem and bars are both GB, and the bars have an outline of Great Britain on one side near the clamp point. Brakes and levers were Weinmann. I never had the original crankset or wheels. The bike had been rattle canned when I got it, but upon stripping the paint, it looks like it was originally a glossy black (with chromed fork ends and stays.)

Sounds like it's probably a Raleigh, but I have no idea what year or model.

Some pics of the bike with its new look: