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Frame identification help

Old 03-28-20, 04:58 PM
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Thedirtycarpent
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Frame identification help

Hi , I have what I believe to be an 80s Columbus framed bicycle and I'm trying to id which brand it is. The frame number is underneath the bottom and is simply 2501A. Any help would be really appreciated.
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Old 03-28-20, 08:04 PM
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Welcome! Somebody will be along to help you decode the serial number. Not my specialty.
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Old 03-29-20, 04:38 AM
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You're not going to be able to ID the bike from the frame number. Get 9 more quality posts done and then you can post some pic of your actual frame.
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Old 03-29-20, 05:58 AM
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Originally Posted by Thedirtycarpent View Post
Hi , I have what I believe to be an 80s Columbus framed bicycle and I'm trying to id which brand it is. The frame number is underneath the bottom and is simply 2501A. Any help would be really appreciated.
God morning and welcome to the forums. Can you tell us more about it? What brand are the dropouts? Do you know the bottom bracket threading or the seatpost size? There are not cartouches or markings anywhere on the frame?

As noted you need 10 post before being able to post pics but if you like you can email me some and I'll get them posted. BianchiGirLL@yahoo.com
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Old 03-29-20, 07:43 AM
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Originally Posted by Thedirtycarpent View Post
Hi , I have what I believe to be an 80s Columbus framed bicycle and I'm trying to id which brand it is. The frame number is underneath the bottom and is simply 2501A. Any help would be really appreciated.

did you paint this? Any before pics? Again do you know if there is anything on the dropouts, where the wheel mounts, and the bottom bracket threading?

I am no expert but I donít think Gios ever made a bike with cantilever brakes.





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Others but still loved; '80 Batavus Professional, '87 Cornelo, '?? Jane Doe (still on the drawing board), '90ish Haro Escape SLX Bertoni "Speckled Trout"
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Old 03-29-20, 11:17 AM
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That is an unusual bike indeed. Cantilever bosses and brake cable hanger on the inside of the rear triangle!
Lots of eyelets: Some sort of touring frame.
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Old 03-29-20, 11:36 AM
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Totally bizarre: the cable hanger "loop" and canti bosses are inboard on the seatstays? Why? Rack clearance? I see it has a 2-oval slot BB shell, MIGHT be Italian but nothing certain. If the fork is original that's what OP should check (steerer base) for rifling to determine if it could be Columbus. If the Weinmann CP hanger is OEM I tend to think that's a clue for "not" but....need more info. Looks like a braze-happy chap added some bits, including the extra DO eyelets for fender/rack.
And my guess: yes the OP re-painted this cause it's masked, and the vise it's clamped in has same green paint on it.
Cool Benelli, BTW!

Last edited by unworthy1; 03-29-20 at 11:48 AM.
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Old 03-30-20, 03:50 PM
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Originally Posted by unworthy1 View Post
Totally bizarre: the cable hanger "loop" and canti bosses are inboard on the seatstays? Why? Rack clearance? I see it has a 2-oval slot BB shell, MIGHT be Italian but nothing certain. If the fork is original that's what OP should check (steerer base) for rifling to determine if it could be Columbus. If the Weinmann CP hanger is OEM I tend to think that's a clue for "not" but....need more info. Looks like a braze-happy chap added some bits, including the extra DO eyelets for fender/rack.
And my guess: yes the OP re-painted this cause it's masked, and the vise it's clamped in has same green paint on it.
Cool Benelli, BTW!
having seen the frame in its unpainted state it didn't look like any brazeing was done. There's a little pin on the rear of the steering tube that seems to be for a pump. I thought that was a little unique and have seen on a pic of a bianchi. Would this be relevant.
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Old 03-31-20, 07:39 PM
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No, a "pump mount pin" is nothing unique to Bianchi. Dozens of makes used them, there were a handful of styles.
SOMEbody did some brazing cause those shorty DOs never had double eyelets AFAIK....any experts disagree?
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Old 03-31-20, 07:53 PM
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The rear dropout connections are bullet shaped. This would lead me to think not Columbus tubes and not Italian.
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