Re: [CR]T.A 44 ring on Crit adapter

(Example: Framebuilders:Tony Beek)

Date: Mon, 12 Mar 2001 15:19:10 -0700
To: "Mark A. Perkins" <bicyclemark@juno.com>, Wdgadd@aol.com
From: "Bicycle Classics inc" <bikevint@tiac.net>
Subject: Re: [CR]T.A 44 ring on Crit adapter
Cc: classicrendezvous@bikelist.org


Hi Mark,

My fuzzy idea that a 44 ring fits on a TA Crit adapter isn't so fuzzy - I'm holding a factory packaged (OK, I put it down to type this) TA Crit adapter with 54/44 rings in my hand. I may not be certain or correct about much, but on this one its certain - it does work and exist. Mike "still learning about TA" Kone

At 06:07 PM 3/7/01 -0700, Bicycle Classics inc wrote:
>>Re: TA Criterium Adapter,
>
>A 44 is definetly workable as we sold some of these set-ups late last year
>with 44's mounted from the factory. I think that's as small as they go.
>Mike Kone
>
>
>>I have owned, and played around with many variations of TA equipment over
>>the past 30+ years, and I still do. It all began with one of those
>>Jeunet 630's. So I thought I would share a few things I have done with
>>the group.
>>
>>First, I'm fairly certain that the smallest ring that will fit onto an
>>"Criterium Adapter", is a 45 tooth, maybe a 44, but I don't think so.
>>
>>I have a modified TA Criterium Adapter on my '83 SANTANA "Marathon"
>>tandem, with 56 tooth outer, 48 tooth middle, and 36 tooth inner rings.
>>I had a friend mill the inner shoulder in six places in line with the 6
>>arms on Cyclotouriste rings, and then drill an 80 BCD circle, to allow
>>Cyclotouriste middle and inner rings to be used with the Criterium outer
>>ring. The six, 80 BCD bolt/spacer/nuts go through the 36 tooth ring, the
>>48 tooth ring, and the adaptor. The six 116 BCD bolt/spacer/nuts go
>>through the middle 48 tooth ring, the adaptor, and the outer 56 tooth
>>ring. This is the strongest combination of TA rings that I have ever
>>used.
>>
>>I did something a little different in '84, when I built my own
>>traditional lugged touring bike. I ordered some Shimano Deore Dyna-Drive
>>crank-arms and pedals, the ones with the same 50.4 BCD as TA, and much
>>beefier cross-section arms. Then I installed TA rings on the Shimano
>>arms. With a set of Dura Ace SF hubs equipped with 12-26 6-spd.
>>cassette, and 26, 36, 44 TA chainrings, I have a gear range from around a
>>26 in. low-gear to a 99 in. high-gear. This combination has served me
>>well for 17 years now. It's my good bike with fenders that I use for
>>commuting most of the time.
>>
>>Wow, it's late, gotta' go for now.
>>
>>"Bicycle Mark" Perkins
>>Visalia/Fresno, CA
>>
>>On Mon, 5 Mar 2001 19:53:54 EST Wdgadd@aol.com writes:
>>> Dear Dale,
>>> I believe that the chainring set often referred to as the T.A.
>>> "criterium" adapter set is properly called the Professional set. It was
>>
>>> composed of a double flanged adapter (either 3 pin/116 BCD or 5
>>pin/50.4 BCD)
>>> that mounted 6 bolt/152 BCD chainrings. Single flanged track versions
>>were
>>> also available. I've heard rumors of small numbers of 5 pin versions
>>made to
>>> accept 6 bolt/116 BCD rings (36 tooth minimum).
>>> The Criterium set was part of the Cyclotouriste "family". It was a
>>5
>>> pin/50.4 BCD outer ring drilled to fit a 152 BCD inner ring (43 tooth
>>min).
>>> There was also the Randonneur set (same general pattern, but116 BCD
>>inner,36
>>> tooth min) and the familiar Cyclotouriste (80 BCD inner, 26 tooth min).
>>
>>> Criterium inner rings probably won't fit Professional adapters, as the
>>ends
>>> of the arms are radiused and so will foul the flange.
>>> The Jeunet 630 in the "Classic French" section of the Rendezvous has
>>Criterium rings.
>>> How 'bout a pair of Bata Bikers and a Cool Gear jersey to go with
>>that
>>> Skid Lid?
>>>
>>> Regards,
>>> Wes Gadd
>>>
>>> P.S. I know I said I'd shut up.....
>>>
>>> _______________________________________________
>>
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