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  1. #1
    Senior Member MikesChevelle's Avatar
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    Help dating this Miyata

    Picked it up at a garage sale for $20. Miyata Sports Series, Has Thunder Bird deraileurs, which I have never heard of. thing weights a good 30 lbs, but is in great shape, just needs a good cleaning, no rust anywhere. Front and rear taillight along with generator are mint.




    1988 Centurion IronMan "Miami Vice" - 2008 Gary Fisher Genesis
    Moved to Boise....I miss all my old bikes....Time to start over.............

  2. #2
    Senior Member gtownviking's Avatar
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    more pics please?
    2008 Jamis Satellite
    1996 Trek ST 120
    1983 Miyata 710

  3. #3
    Senior Member MikesChevelle's Avatar
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    1988 Centurion IronMan "Miami Vice" - 2008 Gary Fisher Genesis
    Moved to Boise....I miss all my old bikes....Time to start over.............

  4. #4
    Student of Hybrid Gearing BluesDaddy's Avatar
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    I always go with the Shimano date code when I can. Website www.vintage-trek.com has a full explanation of the process.

  5. #5
    Senior Member canyoneagle's Avatar
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    Dating tips for the Miyata:
    - Know at least a few Japanese words and phrases
    - take her to a decent restaurant
    - treat her with respect
    - don't expect anything to progress too quickly



    Anyway, the Shimano date code is probably the best route to go. I'd guess early to mid 70's.
    Currently one bike: Singular Gryphon do-it all bike with Nuvinci N360
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  6. #6
    Senior Member MikesChevelle's Avatar
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    I read that the B in the BB serial means its a 73
    1988 Centurion IronMan "Miami Vice" - 2008 Gary Fisher Genesis
    Moved to Boise....I miss all my old bikes....Time to start over.............

  7. #7
    Senior Member
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    Thunderbird derailleurs were super common on lower end bikes in the seventies, I can't see your pics as I'm at work so I can't say any more than that.

  8. #8
    rain dog mainstreetexile's Avatar
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    Quote Originally Posted by MikesChevelle View Post
    I read that the B in the BB serial means its a 73
    Yea that should put it as a 73. Components can be tricky to use to determine the date sometimes because they can be replaced. but it looks like that old shimano stuff was probably stock. Looks like a lower-end high-ten bike boom bike but in really nice shape.

    It's a cool looking bike but it's probably heavy as a tank, those thunderbird/eagle rear derailleurs with the bash cages are beasts! That miyata decal on the downtube looks pretty awesome, could you post a bigger picture of that and the headbadge?

    Do the generator lights work? What are your plans for this, are you going to make any changes to it?

  9. #9
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    1973 Miyata MX-M. Shimano date codes probably won't be much help, as they did not consistently apply them prior to 1976. While the front derailleur is a Shimano Thunderbird, the rear derailleur is a Shimano Eagle. From the angle, I can't tell the version but I believe it's the Eagle SPO. The stem looks dangerously high, probably well above the instrertion mark.

  10. #10
    Senior Member snarkypup's Avatar
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    Quote Originally Posted by canyoneagle View Post
    Dating tips for the Miyata:
    - Know at least a few Japanese words and phrases
    - take her to a decent restaurant
    - treat her with respect
    - don't expect anything to progress too quickly



    Anyway, the Shimano date code is probably the best route to go. I'd guess early to mid 70's.
    You are so ahead of me. I was going to suggest classic pick-up lines.

  11. #11
    Senior Member canyoneagle's Avatar
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    Quote Originally Posted by snarkypup View Post
    You are so ahead of me. I was going to suggest classic pick-up lines.

    The thread title just begs for it, no?
    Currently one bike: Singular Gryphon do-it all bike with Nuvinci N360
    Coming soon (winter project) Ciocc Designer '84 mod build
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  12. #12
    The Left Coast, USA FrenchFit's Avatar
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    I have the sister bike, "Racer" model; Shimano 333 / Dura-ace. It's may commuter - rain bike = with hondo fenders. Excellent ride, I wouldn't sell for $300-400.

  13. #13
    Senior Member MikesChevelle's Avatar
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    Quote Originally Posted by FrenchFit View Post
    I have the sister bike, "Racer" model; Shimano 333 / Dura-ace. It's may commuter - rain bike = with hondo fenders. Excellent ride, I wouldn't sell for $300-400.
    Pics?
    1988 Centurion IronMan "Miami Vice" - 2008 Gary Fisher Genesis
    Moved to Boise....I miss all my old bikes....Time to start over.............

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