Originally Posted by
T-Mar
FWIW, the Columbus decal is the pre-1988 style. However, a lot of manufacturers didn't rotate their decal, so you's often see the older decal style on 1988 models and sometimes even 1989 models. if the decal is OEM, I would think that the probability of it being into the 1990s would be very small.
The decal itself is a Columbus SL or SP decal, so the frame should be full SL or SP, or the tretubi version (SL or SP only in the main tubes). It is relatively easier to verify that the frame is full Columbus SL or SP. It will use a 27.2mm seat post for SL or a 27.0mm for SP. Also, it will have a Columbus steerer tube on the fork. There will be the Columbus dove logo stamped onto the outside the steerer tube and on the inside, at the bottom, there will be five helical ridges (see photo). Of course, this assumes that the fork is OEM to the frame.
Ah, thanks for that info. Based on that the tubing is 27.2 so that means Columbus SL tubes.
The fork is a Zeus 2000 fork, which I don't think is OEM, because there are no other Zeus parts that came on the frame. If it was a Zeus bike, why would it use an Ofmega headset and Campy bb? (Unless someone switched that out, but why do that?) The frame does not show any ready signs of a front end crash on the top, down or headtube, so maybe it's just a fork change out.