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What’s this Bianchi mid 1980s model?

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What’s this Bianchi mid 1980s model?

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Old 02-01-21, 11:20 AM
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.joeri.
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What’s this Bianchi mid 1980s model?

Hi all,

I’ve got this Bianchi from the mid-end 80s I guess. I’ve been looking what model it exactly is, but can’t find it really.
Especially the rear triangle never matches (at the rear derailleur, and at the saddle).

I wonder what components originally were mounted (definately not the handlebar currently mounted ).
I assume the original color was celeste, considering the little scratches on the frame which shows the celeste color.
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Old 02-01-21, 11:22 AM
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Old 02-01-21, 11:23 AM
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Old 02-01-21, 11:57 AM
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Originally Posted by .joeri.
Hi all,

I’ve got this Bianchi from the mid-end 80s I guess. I’ve been looking what model it exactly is, but can’t find it really.
Especially the rear triangle never matches (at the rear derailleur, and at the saddle).

I wonder what components originally were mounted (definately not the handlebar currently mounted ).
I assume the original color was celeste, considering the little scratches on the frame which shows the celeste color.

I would say this is more late '70s early '80s. It is curious that there are no cartouches on the frame or fork, is there anything on the dropouts? Can you read the BB threading?

Yes those handlebars and stem are not original, I don't think that high rise adjustable stem was even around until the later 2000s. The wheels are also much newer than the frame and I suspect the brakes were installed to match the deals.

If you looking at the correct catalogs for your country, conentrate on matching the crank (SR?) and the headset. @T-Mar would probably know the year better than I though
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Old 02-02-21, 06:43 AM
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The subject bicycle appears to have been largely rebuilt, complicating identification. The frame itself, appears to be one of the Italian manufactured Rekord 74X variants from the very late 1970s. The serial number, which should be on the front of the upper head lug, will tell us the year of manufacture, while the seat post diameter will give us an indication of frame level.
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Old 02-02-21, 08:18 AM
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Originally Posted by T-Mar
The subject bicycle appears to have been largely rebuilt, complicating identification. The frame itself, appears to be one of the Italian manufactured Rekord 74X variants from the very late 1970s. The serial number, which should be on the front of the upper head lug, will tell us the year of manufacture, while the seat post diameter will give us an indication of frame level.
For comparison, mine is (evidently) a 1982 model, built at the end of 1981 (see signature). The Bianchi script on my seat tube and downtube decals looks exactly like yours, but my decals lack the perpendicular edge markings at each end. From what I can discern from a computer monitor, your frame color is closer to black than my "charcoal," or "Ralph Lauren metallic brown," as my artist wife calls it.

Your serial number indeed appears to be stamped across the top head lug; mine wraps around the seat lug. T-Mar knows best, but I wonder if yours is Japanese. The easy way to tell is the BB shell width and threading -- 70mm 36x24 Italian, 68mm 1.375x24 ISO/Japanese. Do report the seat post diameter, as well -- mine is 27.2mm, befitting its Tre Tubi frame with double-butted CrMo main triangle.
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Old 02-02-21, 12:22 PM
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Old 02-04-21, 05:32 AM
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I did some quick measuring this morning.

Seat post diameter 26,6mm
36x24 thread Gipiemme - Italy (*marked - not measured)
bb 68mm (I'm now wondering if I made a mistake here, but I was convinced it was 68mm this morning.)

Serial number on the top head lug:
7A00177
With sticker "Bianchi 00.4.23" (if I read correctly)
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Old 02-04-21, 06:34 AM
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Serial number indicates a 1977 model. Definitely Italian manufacture, based on both the serial number and bottom bracket thread standard. Seat post size is too small for a Columbus tubeset of the era but too large for for Bianchi's Calibrati, high tensile steel. It could be a something like one of the Falck tubesets. The 00.4.23 sticker is the model number, indicating a Rekord 746, though OP previously suggested a possible repaint and re-decal based on underlying celeste paint.
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Old 02-04-21, 07:09 AM
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@.joeri. - Is there a chance the post is undersized? Are the ears on the lug pinched?
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Old 02-08-21, 11:19 AM
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Originally Posted by SJX426
@.joeri. - Is there a chance the post is undersized? Are the ears on the lug pinched?
I measured the seat tubes inside diameter, which is about 26,2mm. Seatpost is firmly mounted
No pinched lugs.
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Old 02-08-21, 12:58 PM
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26.2mm is the typical post size for Bianchi's Calibrati hi-tensile tubeset. found on many of the Rekord 74x models.
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Old 02-09-21, 06:04 AM
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Originally Posted by T-Mar
26.2mm is the typical post size for Bianchi's Calibrati hi-tensile tubeset. found on many of the Rekord 74x models.
Thanks T-Mar for sharing your knowledge!
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