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Miyata???

Old 03-26-13, 01:00 AM
  #1  
Pietr
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Miyata???

Hi there! I picked up this frame from a garage sale and I would love to know who made it, if some-one might know.
It had Suntour Cyclone groupset and basic Suntour hubs but then I noticed a lovely Tange Falcon Headset, and the dropouts had Suntour PRO stamped on them.
I Googled Suntour dropouts and found a dropout with a Surperbe stamp, so I assume these might be Surperbe Pro, just leaving out the Surperbe part for lack of space maybe.
The BB shell has M5K05385 stamped on it; a mate of mine that's a frame-maker,(Peter Bundy),thinks that the M stands for Miyata, but as far as I found out (Google again), the first letter in a Miyata serial number stands for the year, not Miyata.


Does anyone recognize this pretty thing?

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Old 03-26-13, 05:16 AM
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M does not stand for Miyata, search the forum there is a detailed discussion of Miyata serial numbers. Not aware of anyone using a designation to match brand name, but there is probably a brand out there that does. Wrap around stays and dropouts are both good signs, lack of chrome on stays not as good, although there were plenty of high end models without chrome. Steering tube will usually be marked with at least tubing mfr. Tange uses a simple date code.

Tmar has a wealth of info on serial numbers.
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Old 03-26-13, 05:20 AM
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It a 1985 frame manufactured by a Japanese company called Mikki. They made many of the earlier, mid and upper end Centurion models but during this period were building for brands like Nikko, Sakai and Sekai. It's most likely a Sekai model. The frame features are typically indicative of a mid-range model. Most Mikki frames were built with Tange tubing. Tange is rare in that they use a double butted seat tube and the top butt thickness is common to many of their tubesets, making it difficult to determining which Tange tubneset has been used.

Last edited by T-Mar; 03-26-13 at 05:25 AM.
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Old 03-27-13, 05:49 AM
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Wow, youz fellaz are good! Thanks guys, had that frame lying about for 3 years without a clue! Yeah I didn't know they stamped the steerer. Yes it had Tange.5.I, which I believe is indeed 1985 and the "I" is September(?). Cheers


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Old 03-27-13, 06:04 AM
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That's the way I have seen it. 5 I = September 1985 (or 1975, but its easy to tell a decade difference in frame construction, and this one is not 1975, for the reasons TMar mentions below).

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Old 03-27-13, 06:17 AM
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The fork code interpretation is correct and is interesting as the frame itself was made around May. Maybe Mikki was doing some stockpiling or maybe it got caught up in the rework process for some minor quality control issue?

The frame is definitely 1985 as opposed to 1975. Superbe, let only Superbe Pro, was not available in 1975. On top of that, the frame has features which were very rare in 1975, even on top end models; downtube shifter bosses, cable tunnels under the bottom bracket shell and water bottle bosses.
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