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Koga-Miyata trailer attachments

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Koga-Miyata trailer attachments

Old 05-07-19, 11:19 AM
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sleepycactus
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Koga-Miyata trailer attachments

My neighbor bought a Koga-Miyata “chela” trailer from a junkyard for $5. We are trying to figure out how it attaches to the bike. It has the swiveling U shaped frame part with its twisting quick release collars, but the parts that attach to the dropout areas at the rear wheel of the bike are missing. I have no idea what they even look like. Anyone have pictures or ideas? I would weld something together out of steel if needed, but getting an idea of the original design would help.
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Old 05-07-19, 11:52 AM
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Originally Posted by sleepycactus View Post
My neighbor bought a Koga-Miyata “chela” trailer from a junkyard for $5. We are trying to figure out how it attaches to the bike. It has the swiveling U shaped frame part with its twisting quick release collars, but the parts that attach to the dropout areas at the rear wheel of the bike are missing. I have no idea what they even look like. Anyone have pictures or ideas? I would weld something together out of steel if needed, but getting an idea of the original design would help.
Presumably it attaches in a manner similar to BoB Yak. Perhaps you can use a modified Yak skewer? Or make completely from scratch using a Shimano tandem replacement axle and material from the LHS (hardware)?

Since this is a rare 14-year-old trailer, it is probably best you pose your question to the experts at Koga-Miyata:

http://www.koga-america.com/order--contact.html

https://www.koga.com/en/about-koga/contact

I wonder if the waterproof coating on these bags has gone bad.
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Old 05-08-19, 07:41 AM
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Koga might be your best bet. There were originally some issues with the provided axle so Koga offered a kit to rebuild it with an improved version.



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Old 05-10-19, 03:32 PM
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[QUOTE=JaccoW;20919682]Koga might be your best bet. There were originally some issues with the provided axle so Koga offered a kit to rebuild it with an improved version.
QUOTE]

Thank you both very much for the help! I have not heard back from Koga yet, but knowing how the quick release skewer attachment looks gives me enough information to braze something together if I can’t get the part.
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Old 05-11-19, 12:40 PM
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Originally Posted by sleepycactus View Post
Thank you both very much for the help! I have not heard back from Koga yet, but knowing how the quick release skewer attachment looks gives me enough information to braze something together if I can’t get the part.
This is close to what you want:

http://www.bobgear.com/bike-trailers/bob-quick-release

Last edited by seeker333; 05-11-19 at 02:19 PM.
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Old 05-11-19, 12:42 PM
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Originally Posted by seeker333 View Post
Originally Posted by sleepycactus View Post

This is close to what you want:

BOB QUICK RELEASE | BOBgear
I think you missed a /quote there.
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Old 05-11-19, 01:44 PM
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[QUOTE=sleepycactus;20923801]
Originally Posted by JaccoW View Post
Koga might be your best bet. There were originally some issues with the provided axle so Koga offered a kit to rebuild it with an improved version.
QUOTE]

Thank you both very much for the help! I have not heard back from Koga yet, but knowing how the quick release skewer attachment looks gives me enough information to braze something together if I can’t get the part.
Company website has links for addresses of a lot of their Dealers..
might get a reply at retail level, If not getting a response from the manufacturer ..









....
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Old 05-11-19, 02:20 PM
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@jacco ty
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Old 05-28-19, 03:34 PM
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[QUOTE=fietsbob;20924948]
Originally Posted by sleepycactus View Post

Company website has links for addresses of a lot of their Dealers..
might get a reply at retail level, If not getting a response from the manufacturer ..



I did get a reply from somebody who was apparently on vacation. He said he would look for one at the shop when he got back in mid june. Very nice of him.
But I decided to try making one anyways. I brazed some cro-moly tube on the ends of an old skewer I had.

I had another problem with the trailer pivot (where it is behind the rear wheel). The headset-like arrangement was loose. When I tried to turn it (all aluminum parts) I found it had seized. I could turn it with lube but it was shearing the threads off. I just packed as much grease in there as i could and snugged it down and adjusted it best I could. Who knows how long it will last. The pivot appears to be plastic bushings only; no bearings. A real design flaw in a trailer that has a lot of good things going for it.

I like how the trailer double kickstand holds up the trailer, and the bike too.









....


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