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Need help identifying "old?" Bianchi

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Old 12-27-23, 03:09 PM
  #1  
Reynolds 531 
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Need help identifying "old?" Bianchi

I hate to start a new thread, but....
I posted in the other thread, but it has gotten pushed down too far
Ok. Lets not start a new thread when all the experts are here. In fact it's pretty much a family tradition by now.

Traded for one of my precious Suntour Ultra-6 freewheels:
One Bianchi frame, repainted Celeste, but appears to have always been Celeste after peeking inside.
Serial number on headtube 4B xxxxx
Long Campagnolo dropouts, with a cast notch on the rear of the NDS dropout. Never seen that on any bike.

wierd notch, plus divers helmet in background with 4,5mm I.D.

No braze ons AT ALL besides divers helmet.
Bianchi styled headset, not built in but "rounded".




Faux integrated headset
Fork seems original, but crappy brazing on chromed faux Campagnolo dropouts



Seatpost 26.2mm

I would like help to figure out what year / era to repaint and finish this build. I have a set of Campagnolo 3 bolt Sport cranks that would look great, along with chrome steel Valentino (?) derailleurs if this is early. I have smooth 5 bolt Campagnolo if its late Bianchi.
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Old 12-28-23, 12:26 PM
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Any marks on the headset?
I don't know Bianchi's, kind of a black hole to me but this frame does not look like high-end model.
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Old 12-28-23, 05:02 PM
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Thank you for the reply.

Originally Posted by SJX426
Any marks on the headset?
None. Not a peep. But I haven't taken it apart.

Originally Posted by SJX426
I don't know Bianchi's, kind of a black hole to me but this frame does not look like high-end model.
When picking it up, it also doesn't "feel" like a high-end model. Which ironically makes it the perfect candidate for Campagnolo 3 arm "Sport" cranks and chromed steel derailleurs.
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Old 12-28-23, 07:28 PM
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What's that serial number?
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Old 12-28-23, 09:10 PM
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Is this for sure a Bianchi? Paging Bianchigirll
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Old 12-28-23, 11:36 PM
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Originally Posted by mackgoo
what's that serial number?
4b2937xx

Originally Posted by AdventureManCO
Is this for sure a Bianchi? Paging Bianchigirll
The most Bianchi thing is that is seems to be the "Celeste" paint inside*. Obviously repainted and ebay sticker on the headtube are inadmissible evidence.

*many clues may be found by removing the fork. I'll do that tomorrow.

Last edited by Reynolds 531; 12-28-23 at 11:40 PM.
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Old 12-29-23, 08:37 AM
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Originally Posted by AdventureManCO
Is this for sure a Bianchi? Paging Bianchigirll
That is in interesting question!
Just checked this one for any Bianchi identifiation on the frame, none.
PXL_20230127_132501638 on Flickr
The only indications are the paint, which is original, and the stampings of numbers and letters. Oh and the obvious integrated head set which I think may be unique for late 60s and , '70 &71, maybe 72 Bianchi's. This one has been identified as a '71.
I added the decals which were provided with the frame set.
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Old 12-29-23, 09:45 AM
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Originally Posted by SJX426
That is in interesting question!
Just checked this one for any Bianchi identifiation on the frame, none.
PXL_20230127_132501638 on Flickr
The only indications are the paint, which is original, and the stampings of numbers and letters. Oh and the obvious integrated head set which I think may be unique for late 60s and , '70 &71, maybe 72 Bianchi's. This one has been identified as a '71.
I added the decals which were provided with the frame set.
The number is on the seat tube lug.
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Old 12-29-23, 10:24 AM
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Originally Posted by mackgoo
The number is on the seat tube lug.
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Old 12-29-23, 11:01 AM
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Other than the color(s) and head badge sticker, what makes us think this is a Bianchi?
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Old 12-29-23, 12:06 PM
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Originally Posted by billytwosheds
Other than the color(s) and head badge sticker, what makes us think this is a Bianchi?
Good question.
I would say the location and font of the serial number looks like some Bianchis. The fork crown is reminiscent of a Bianchi, but it doesn't match my other Bianchis, for what its worth.
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Old 12-29-23, 12:07 PM
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like this:
71BianchiSeatLug Bolt on Flickr

Check both sides:
71BianchiDone16 on Flickr
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Old 12-29-23, 12:14 PM
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To me that head set screams Bianchi. Picked this one up a few years back. Sadly, too big for me and even more sadly, the original owner drilled holes in the top tube...


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Old 12-29-23, 12:23 PM
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Originally Posted by AdventureManCO
Is this for sure a Bianchi? Paging Bianchigirll
...I think (but am not 100% on it) that the seat stay attachment on that frame is exclusive to Bianchi of a certain era.
They had a distinctive cast seat lug, that included those bullet shaped stay ends as part of the seat tube top lug.
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Old 12-29-23, 12:40 PM
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Zeroing in on February 1974 Bianchi Rekord.

https://www.registrostoricocicli.com...e-bianchi-265/

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Old 01-01-24, 01:30 AM
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Originally Posted by 3alarmer
...I think (but am not 100% on it) that the seat stay attachment on that frame is exclusive to Bianchi of a certain era.
They had a distinctive cast seat lug, that included those bullet shaped stay ends as part of the seat tube top lug.
​​​​​​
​​​​​​Exactly. For the record, I was the person that gave to frame set to Reynolds 531 . The seat stay caps are very similar to both my '54 and '64 Bianchis. This frame was part of a husband/wife combo which included my '64 Bianchi, which was a second of the line "Team Issue," which was second only to the 999 serial Reparto Corse bikes of that era.

It's definitely a Bianchi... What year and where in the pecking order is another question entirely.... Cool bike, regardless!
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Old 01-01-24, 01:40 PM
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Originally Posted by randyjawa
To me that head set screams Bianchi. Picked this one up a few years back. Sadly, too big for me and even more sadly, the original owner drilled holes in the top tube...
Worked it - Filling top tube holes - Bike Forums
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Old 01-01-24, 01:44 PM
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is it just me or does that RH front fork dropout look incompletely brazed ?

/markp
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Old 01-01-24, 09:54 PM
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Originally Posted by mpetry912
is it just me or does that RH front fork dropout look incompletely brazed ?

/markp
Definitely. Even two paint jobs couldn't fill that gap.
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