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Old 08-20-09, 11:01 PM   #1
twsindypa
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Saved Sekai Competition

Greetings

I just saved this Sekai Competition bicycle from our local metal scrap recycling center. A three dollar purchase. No wheels, but everything else looks to be original except for the seat. The frame has some minor chips here and there, but the stickers/decals are mint. Some specifications are:

Serial number 76B90059 on underside of bottom bracket
Tange Double-butted High Tensile Throughout tubing
Suntour GS dropouts
Suntour Cyclone derailleurs with Suntour Barcon shifters
Dia-Compe Deluxe black-anodized brakes
SR Forged handlebar stem
SR Road Champion/Sakae Custom handlebar
Sugino Maxy crankset
25.8 mm seatpost (made in Japan)

Any information about this bike would be much appreciated (e.g., model number, year).

Its fate is to be a single-speed for my daughter to complement my single-speed converted 1981 Panasonic Team bicycle that I purchased right out of college. A nice pair of relatively high quality Japanese rigs.

Thanks.

Cheers,
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Last edited by twsindypa; 08-21-09 at 06:45 AM. Reason: Additional specifications
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Old 08-21-09, 07:51 AM   #2
T-Mar
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That's an open format serial number and, with little doubt, a 1976 model. I didn't realize the Maxy II crankset extended bck quite that far. You don't see the butted, hi-tensile tubing too often. It was intended to fill the gap between plain gauge hi-tensile and plain gauge CrMo. Typically, the component level would not be quite so high on a model with this tubeset. It would appear to be a concession to hit a particualr pricepoint while alluring the customer with a attractive component mix, particularly the derailleurs. Still, a nice, lower midrange bicycle.
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Old 08-21-09, 07:56 AM   #3
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That is perfect for a SS, I don't see anything to cut/grind off but maybe the D-hanger <g>.
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Old 08-21-09, 01:35 PM   #4
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Quote:
Originally Posted by T-Mar View Post
That's an open format serial number and, with little doubt, a 1976 model. I didn't realize the Maxy II crankset extended bck quite that far. You don't see the butted, hi-tensile tubing too often. It was intended to fill the gap between plain gauge hi-tensile and plain gauge CrMo. Typically, the component level would not be quite so high on a model with this tubeset. It would appear to be a concession to hit a particualr pricepoint while alluring the customer with a attractive component mix, particularly the derailleurs. Still, a nice, lower midrange bicycle.
T-Mar
Thanks so much for your input and sharing your expertise. I guess this Sekai is a bit lower in quality than my ~1981 Panasonic Team that came with Tange Champion #2 Butted tubing. Nonetheless, the Sekai should make a excellent singlespeed for my daughter. Cheers,
TWS
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Old 08-21-09, 02:19 PM   #5
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[QUOTE=David Newton;9530524]That is perfect for a SS, I don't see anything to cut/grind off but maybe the D-hanger <g

Don't do it!!! Never do anything irreversible. I'ts not worth the small weight savings. You may decide to restore it someday, or when you decide to sell it, maybe the prospective will want multiple grearing.


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Originally Posted by twsindypa View Post
I guess this Sekai is a bit lower in quality than my ~1981 Panasonic Team that came with Tange Champion #2 Butted tubing.
Oh, there's quite a bit of difference. The #2 tubeset is about 600g lighter (~1.25 lbs).
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