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Old 10-25-08, 10:01 AM   #1
unworthy1
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Tell me about this TA adapter

...or is it a Speciaties TA adapteur...in any case it adapts some kind of huge BCD ring (or double in this case) to a standard 5-bolt spider as found on TA Cyclotouriste or Stronglight 49D crankarms.
What rings work with this?
the C-C measurement is about 76mm.
Are the rings still available?

Last edited by unworthy1; 10-25-08 at 10:36 AM.
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Old 10-25-08, 10:10 AM   #2
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There was another set of rings for this adapter, different from the CycloTourist that fit these. I think the idea was to make the connection more solid and rigid...

I believe I have a couple of the adapters with one ring attached each, haven't run across any others.
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Old 10-25-08, 10:14 AM   #3
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I'd like to see a pic of the ring if you can post one...is the ring a TA product or Stronglight (or something else)?
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Old 10-25-08, 10:18 AM   #4
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I have an adapteur ring on my carlton..



the real benefit and (to the best of my knowledge) original reason for existing was to allow for changing chainrings before races without needing to pull off the pedals.

i got mine (and rings) from bicycle specialties in Canada

http://www.bikespecialties.com/site/index.html

the website says they have closed doors but i shot them an email and was still able to buy rings from them.
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Old 10-25-08, 10:36 AM   #5
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Thanks for the info!
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Old 10-25-08, 10:52 AM   #6
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Looks like it was called the "Professional". Maybe used the "Criterium" rings too...

Looks like there was an adapter for the 3-bolt arms too.

Catalog here:

http://www.wooljersey.com/gallery/v/...ge_01.jpg.html
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Old 10-25-08, 01:11 PM   #7
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I have one of those adapters that lets me run 122 bcd rings on a Stronglight 49D or TA Cyclotouriste. Joel Metz shows a few variations on his TA page: http://www.blackbirdsf.org/ta/pro5.html

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