If you have the ones I think, I believe they were called TA Competitions. Mike Kone sold the adapters and rings in his recent closeout sale and maybe sold any left over at VeloSwap. I bought a couple of sets of adapter and rings in the sale, and can check them for you if you have some specific questions. I think maybe the smallest ring available for this adapter was 44T, like the old pre-NR Campy Record, but I don't know if the bolt circle was 151 or something slightly different - guess I should measure it. I think I've seen photos of Beryl Burton using these cranks in the 50's or 60's.
Regards,
Jerry Moos
John Swarbrick wrote:
> Hello all.
>
> Firstly please let me appologize for my earlier question in HTML
> sorry!!
>
> Ok,
>
> Thanks for all the answers on my TA cranks.
>
> I also have a TA adaptor ring which fits the Cyclo Touriste crank family.
>
> The question is what 6 pin rings fit this adaptor?
>
> I guess that TA produced this as there bigger Rings have a bit of a tendancy
> to flex.
>
> Cheers,
>
> John.