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  1. #1
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    Bridgestone MB serial number help.

    I have what I believe is a 1991 Bridgestone MB-4.

    My serial number is X020349.

    But when trying to decode the serial number everywhere I look does not mention serial numbers that begin in X. Warranty frame?

    I appreciate any help.
    Attached Thumbnails Attached Thumbnails Bridgestone MB serial number help.-img_20171008_221419.jpg  

    Last edited by drew54; 1 Week Ago at 08:19 PM.

  2. #2
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    Hey, same here. I do have a MB1 from 1993 I guess, but with K22422. Reading in the catalog on Sheldonbrown there where only 1000 made,the number seems to be pretty random.
    Thanks for details, if there is a logic

    Sent from my Pixel using Tapatalk

  3. #3
    bipolar-roller
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    Quote Originally Posted by drew54 View Post
    I have what I believe is a 1991 Bridgestone MB-4.

    My serial number is X020349.

    But when trying to decode the serial number everywhere I look does not mention serial numbers that begin in X. Warranty frame?

    I appreciate any help.
    Post a picture of your MB1. They were pretty distinct between each year and should be able to identify the year just by looking at the bike.

    I have an '88 mb1 that I identified simply by looking at the catalogues. Haven't needed to look at the serial number since it was easily identifiable by the catalogue.


    Also, nice MB1 Mcada! To me, 1993 is one of the most desirable MB1s and I have been looking for one for a long time now. I considered it as the last samurai of non-suspension mtbs.
    Get out of the gutter and onto the mountain top.

    "I only had like two winekills captain buzzcooler"

  4. #4
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    I have an what I believe is an MB-4. Lugged frame, so Japanese made. It is the dark purple and white. Missing many decals, but I was hoping to verify it for what it truly is. Even though I'm going to rebuild it with a Deore Dx group.

  5. #5
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    Finally got it to work.Bridgestone MB serial number help.-00v0v_auek63tgbqv_600x450.jpg

    Looks like a 91 MB 4, but the X intrigued me.

  6. #6
    gobsmacked Moderator
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    Quote Originally Posted by drew54 View Post
    Finally got it to work.Click image for larger version. 

Name:	00V0V_aUek63TgBQV_600x450.jpg 
Views:	9 
Size:	52.3 KB 
ID:	1161486

    Looks like a 91 MB 4, but the X intrigued me.
    yup. 91 mb4

    1991 Bridgestone Bicycle Catalogue


  7. #7
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    Thanks for that link to Sheldon's site.
    Now if I only knew what the X is for.

  8. #8
    the new Gilbert Grape
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    The first digit of Bridgestone serial numbers is supposed to be the manufacture month: A = January, B = February, etc.

    I also have owned a frame that started with X. Mine was a '94 frame. I don't know of there was anything special symbolized by an X vs another letter representing the year..

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