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Old Guerciotti, but what is it, and how old?

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Old Guerciotti, but what is it, and how old?

Old 08-08-17, 02:40 PM
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MrFingers
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Old Guerciotti, but what is it, and how old?

Greetings everyone. Long time lurker, first time poster here.

My steed of choice is a vintage Guerciotti that I've had for quite a while (12 years from the top of my head), handed down to me from the father of an ex-girlfriend. It was his professional bike when he was younger (he was born somewhere in the mid 1950's). It's an extremely nimble and stable ride, and I thoroughly enjoy it... But I was wondering: what do I have? Guerciotti's are very hard to pinpoint it seems, and after quite some time sifting through (contradicting) information, I give up.

Some specs:

  • Old Guerciotti logo's (I think)
  • pantographed frame & saddle tube (Belgian colours), with a clover at the front.
  • remnants of a "JET" logo on the top tube, but only on the right side. Not on the chain stays.
  • no Columbus sticker on the seat tube.
  • no 5-pointed star underneath the bottom bracket
  • Campognolo headset & gear shifters (rear one says Patent 74, so 1974?)
  • The cables for the shifters do pass over the bottom bracket, not underneath it.


Some pictures can be found in the attachment


If more pictures are needed, please let me know of what I need to frame. Any input is welcome at this moment. Not looking to sell, or a value (as it's invaluable to me), but just knowing what I have.


And yes, I'll replace the hideous handlebar tape with something more classy in the near future.
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Old 08-08-17, 02:42 PM
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And some more
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Old 08-08-17, 09:50 PM
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I don't think you have a Guerciotti. The "Jet" frames I have seen have Guerciotti in the scallop of the seat stay cap, a different type of brake bridge, the chain stay ends are finished and not domed, derailleur cable go below the BB, and have a G in the fork crown along with the crown being more of a sloping crown rather than the flatter crown we see.

What I do think you have is an Italvega. That looks like an Italvega fork and the scalloped seat stay caps look Italvega to me. What size is the seat post?
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Old 08-09-17, 01:07 AM
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I'll measure them when I get home tonight. Thanks for the reaction.

Two things that might be of interest:
- the bike (or frame) was, to the best of knowledge, purchased new in it's current livrey.
- I'm located in Belgium (Europe), and the bike/frame was purchased here as well, so wouldn't that make an Italvega (which was a US-market thing) unlikely?
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Old 08-09-17, 08:05 AM
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Originally Posted by MrFingers View Post
I'll measure them when I get home tonight. Thanks for the reaction.

Two things that might be of interest:
- the bike (or frame) was, to the best of knowledge, purchased new in it's current livrey.
- I'm located in Belgium (Europe), and the bike/frame was purchased here as well, so wouldn't that make an Italvega (which was a US-market thing) unlikely?
Good points. I did not notice your location. However Italvega was made by Torressini aka Torpado. I am told that Guerciotti used many subcontractors (Bilato and Basso for examples) and it is entirely possible that they used Torressini. This is likely a case of same bike, different market.

I am sharing a photo of the Guerciotti Jet frame I once owned. I think you will see why I did not think yours to be a Guerciotti. Click on the photo and it will take you to more photos.

002 by L Travers, on Flickr
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Old 08-09-17, 09:31 AM
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I think yours is a quite a bit newer than the OPs and I think that and the market may account for the differences.

I don't think the OPs frame is as old as '74 but it maybe an early '80s. I am basing this on the shorter dropouts, although I don't think they are CampI but still having the over cable routing.
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Old 08-09-17, 09:42 AM
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I would agree that it does look like a Italian contract built bike for the euro market. This would explain the slight differences and mixed components. As for age based on the single set of bottle mounts and cable routing I would say late 70's early 80's. You should be able to find a date code on the back of the crank it should be a circle with a number for the 80's last digit being the year or a diamond for the 70's with number.
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Old 08-09-17, 12:44 PM
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I already wish to thank each and everyone of you for your insights!

Originally Posted by CV-6 View Post
What size is the seat post?
Measured with the callipers: 27mm in diameter.

Originally Posted by zukahn1 View Post
You should be able to find a date code on the back of the crank it should be a circle with a number for the 80's last digit being the year or a diamond for the 70's with number.
At the underside (side facing the street when riding)? Because over there is absolutely nothing, it's just a plain piece of painted metal.

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Old 08-09-17, 01:38 PM
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The date code is on the back of the crank arm it looks like this one which is an example of a 1981 date code..
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Old 08-09-17, 01:51 PM
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Ah, the crank itself, I was confused with the BB.

The cranks are made by Ofmega, so maybe not original to the bike?
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Old 08-09-17, 04:41 PM
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Originally Posted by MrFingers View Post
Ah, the crank itself, I was confused with the BB.

The cranks are made by Ofmega, so maybe not original to the bike?
Hard to say. Frames often got sold by themselves and then owner equipped as they saw fit. Date code on the Campag rear derailleur? Even with date codes they are not a 100% dead on dating device.
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Old 08-10-17, 01:12 AM
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Originally Posted by CV-6 View Post
Hard to say. Frames often got sold by themselves and then owner equipped as they saw fit.
I see. Very likely replaced somewhere then, as all the other hardware is Campag, with the exception of the brakes (Shimano).

Originally Posted by CV-6 View Post
Date code on the Campag rear derailleur? Even with date codes they are not a 100% dead on dating device.
That's a Patent '74, so that would denote 1974.
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Old 08-10-17, 07:15 AM
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Originally Posted by MrFingers View Post
I see. Very likely replaced somewhere then, as all the other hardware is Campag, with the exception of the brakes (Shimano).


That's a Patent '74, so that would denote 1974.
I see now you had provided the date code in your OP. Sorry about that. What is on the bottom bracket, if anything? We know already there is no star.
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Old 08-10-17, 08:07 AM
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Originally Posted by CV-6 View Post
I see now you had provided the date code in your OP. Sorry about that. What is on the bottom bracket, if anything? We know already there is no star.
No worries.

On the bottom bracket is absolutely nothing. Just a plain piece of steel without any markings (no stamps, no engraving, not a single identifier).
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