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-   -   Identify bike frame (https://www.bikeforums.net/classic-vintage/1137278-identify-bike-frame.html)

MySong 03-03-18 01:59 AM

Identify bike frame
 
2 Attachment(s)
I need help identifying this bike frame it came with a
-Sakae Ringyo Road Champion
-Sakae Ringyo crankset
-Dia-compe 510 brakes
//imgur.com/gallery/iaIiE
//imgur.com/gallery/9u9qt

cb400bill 03-03-18 06:38 AM

Thread moved from User Assistance forum to Classic & Vintage forum.

Clang 03-03-18 06:55 AM

The chunky lugs remind me of the cast aluminum ones used on a Kabuki or an older, low-end Bridgestone. In any case, it's a waste of time to try to identify a frame by listing the components (which can be swapped). So the photo of the wheel won't help. And the photo of the bike is too dark for a decent ID. Try shooting the frame itself in daylight.

JohnDThompson 03-03-18 07:22 AM


Originally Posted by Clang (Post 20202267)
The chunky lugs remind me of the cast aluminum ones used on a Kabuki or an older, low-end Bridgestone.

Yes, the Kabuki "Submariner" used aluminum lugs cast around stainless steel tubes.

Better pictures would certainly help.

Bianchigirll 03-03-18 09:01 AM

1 Attachment(s)
https://imgur.com/gallery/9u9qt

T-Mar 03-03-18 09:02 AM

Agreed, those are the later version of the Bridgestone cast lugs. However, the S/N format is not Bridgestone. It may not be a Submariner. There appears to be corrosion on the main tubes and the top tube brake cable appears to use brazed-on stops, as opposed clips. If so, this indicates hi-tensile steel, as opposed to the stainless steel of a Submariner. However, this is easy to check with a magnetic. If the main tubes are magnetic, then it would be a Skyway (either Bridgestone or Kabuki branded). Based on the serial number, it should be a 1977 model, though the first two characters are reversed from the Bridgestone format.

MySong 03-03-18 10:02 AM

Thanks how did you read the s/n ? because if it's a 1977 model i just checked sheldon brown and it's probably a Bridgestone Eurasia (successor to Diamond) because it's released in the same year as what you've assumed and it also has a Sakae Apex crankset.

cyclespeugeot.web.fc2.com/reminiscence/bseurasia57.htm

T-Mar 03-03-18 11:43 AM

It's not the Eurasia models to which you've linked. Those have traditional spear point lugs and a traditonal seat post binder bolt. Your frame has square lugs with faux spear points cast into them and the seat lug does not appear to have a binder bolt. The lug traits on your frame traits are indicative of Bridgestone's cast aluminum lugs.

That SR Apex crankset was used on hundreds of different bicycle models and is not unique to the Eurasia models.

Regarding my interpretation of serial numbers, see https://www.bikeforums.net/classic-v...ber-guide.html , post #1.

MySong 03-03-18 09:14 PM

So Skyway it is then the main tubes are magnetic. Thanks, planning on turning/upgrading it into my commuter.

Hummer 03-03-18 11:47 PM


Originally Posted by T-Mar (Post 20202417)
. . . However, the S/N format is not Bridgestone. . . .

I have seen this format of serial number on several Bridgestone bicycles. Most of them were in Asian countries and the serial number location is usually the head lug. I have not seen the Bridgestone serial number stamped down the head tube like this before.

Some Bridgestone built frames for Canadian department store brandnames SuperCycle and Baycrest also have this format of serial number but not located on the head tube.

T-Mar 03-04-18 07:37 AM


Originally Posted by MySong (Post 20203482)
So Skyway it is then the main tubes are magnetic. Thanks, planning on turning/upgrading it into my commuter.

Skyway was the name for this model, as offered under the Bridgestone and Kabuki brands, in North America. However, the lack of rivet holes for a head badge suggests it may have been a foreign market model and/or a contract manufactured model for some other company. Consequently, it could have originally been sold under some other model name and/or brand.


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