[CR]T.A. ring variations

(Example: Framebuilders:Alex Singer)

From: <Wdgadd@aol.com>
Date: Mon, 5 Mar 2001 19:53:54 EST
To: classicrendezvous@bikelist.org
Subject: [CR]T.A. ring variations

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.....