Criterium might be correct, rather than Competition. Mike Kone's web page with these is no longer available, so I can't check that. Perhaps Chuck has these in a catalog. I don't think they were called "Professional", as I think that name was applied to the 3-arm cotterless cranks. If they are 151, that would mean that 44T most probably was the smallest ring as it was on the 5-arm 151 BCD old Record on on the Zeus Competition 151 BCD inner ring. With so many racing cranks of the era limited to 44T, one wonders if the racers at the time climbed in bigger gears than today, or just used larger FW cogs.
Regards,
Jerry Moos
Joseph Bender-Zanoni wrote:
> I thought they might be called a TA Criterium. I just measured the ones I
> have and they are 151mm.
>
> Joe Bender-Zanoni
> Foot of snow in A^2
>
> At 10:37 AM 12/12/00 -0500, Jerry Moos wrote:
> >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.