Bianchi Serial Number Decoder

Posted : admin On 9/24/2019
  1. Bianchi Serial Number Decoder Lookup
  2. Bianchi Serial Numbers Model
  3. Bianchi Serial Number Decoder Numbers
  4. Bianchi Serial Number Database

The other Legnano serial number format that I have run across is on the left side of the seat tube just below the seat lug. This format shows up on the 1972 Gran Premio that is.

  • Sep 29, 2011  SLX would be used in a high end model Tre-Tubi in a mid line model. If it uses Easton, has an English bottom bracket, and Shimano hardware it is late model license production, but the Celeste paint is probably an indicator that it is not. Serial numbers? You might try sending them to Bianchi and see if you get a response.
  • Bianchi Eduardo Reparto Corsa serial numbers Placed in ascending serial number order. (Not that this approach yields exact dating.?) Updated 7.13.2016.
Active11 months ago

(This post was substanically edited/updated on 5/8/14.)

I have a bike frame of unknown lineage.

Based on current understanding of the Bianchi serial number format this should be a 1987 model, manufactured in late 1986. However, there are a number of inconsistencies, complicated by the mostly non-OEM components. Regardless, the frame features are inconsistent with a. FRAME NUMBER DATING. Bicycles that can be dated with 100% accuracy are the exception. Marque enthusiasts use records of shop ledgers that recorded dates sold and frame numbers, and then calculate the ages of other bicycles by comparing them with known frame numbers. The dropouts were made in late '84 and we now know that the last two digits of the serial number do not represent the year. (E.g., this '89 Japanese Bianchi has a serial number ending in 86.) So the frame is likely from a '84 or '85 Bianchi (since the dropouts were made late in '84). Edoardo Bianchi started his business in 1885, at Via Nirone in Milan. Moved to Via Nino Bixio in Milan in 1899. Updated 7.13.2016. Bianchi Reparto Corsa serial numbers to determine if a correlation can be made for year of manufacture: Registry: A Bianchi produced just after WW2. This is thought to be Felice Gimondi hitching a ride.

What is known:

  • The serial number under the bottom bracket is IS513786. This fits with the serial numbers for Japanese made Bianchis.
  • The frame has Shimano EF rear dropouts that are stamped with 'IJ'. That means they were made in October 1984.
  • Although I can't be sure that the fork is original, the steering tube has 'Tange.5.I' and a 'J' and 'S' in a circle stamped on it. Also, the crown race was originally JIS sized.
  • I got the bare frame, not the complete bike, and the paint is not original.

The dropouts were made in late '84 and we now know that the last two digits of the serial number do not represent the year. (E.g., this'89 Japanese Bianchi has a serial number ending in 86.) So the frame is likely from a '84 or '85 Bianchi (since the dropouts were made late in '84).

FWIW, I've posted pictures below; I've made sure to point out things that could help identify the frame (braze-ons, lug style, etc.). I've tried to arrange the pictures with the most identifying characteristics first.

FWIW, Here is a similar looking, but not identical, 1986 Bianchi Brava. (That Bianchi has the chainstay cable stop on the underside, while my bike has the cable stop on top.)

(I posted this information on a couple bike forums a few years ago. If you want to see what people said, here are the links to the two threads on bikeforums.net and roadbikereview.com.)

The bottom of the bottom bracket, including the serial number. Also note that there is a chainstay bridge.

Microsoft xps document writer printer driver download. The front of the headtube front. Note that the lugs have points in the middle (unlike some other Japanese lugs from that era).

Apple configurator 2 user guide. The Shimano EF rear, drive-side dropout. Note that there are no eyelets. The date stamp is on the back side, so it is not shown.

Bianchi Serial Number Decoder

The top of the seat stay cap has a flat surface and has nothing written on it. (Some bikes, like high end Miyatas, have curved caps and/or the company name cast into the caps.)

The head tube has a pump peg.

Bianchi Serial Number Decoder Lookup

EDIT: The whole frame:

Bianchi Serial Numbers Model

The side of the bottom bracket:

The frame's downtube shifter mounts:

The seat stays have a chain hanger.Edit: it's hard to see, but the chainstay cable stop is on top of the chainstay -- not below it.

The fork:

Bianchi Serial Number Decoder Numbers

lnmaurer
lnmaurerlnmaurer

Bianchi Serial Number Database

2 Answers

I think i may have the answer to your question. I believe your bicycle is a Takara. This is currently my girlfriends bike, and i have attached some photos. The only things that do not match up are: 1) The front of the head-tube does does not have pointed lugs.

MadmanLeeMadmanLee

The format of the serial number is the same as certain models of Katakura Silk.

The Katakura Silk serial numbers tend to be stamped on the lower seat tube, non-drive side.

The lugs, seat stay caps, fork crown and dropouts match the Katakura Silk.

Serial

Some of the Katakuras were chrome finished, some were white, and possibly other colours.

DavidDavid

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