re: [CR] 70's vintage triple crankset...about those Avocet triples

(Example: Racing:Beryl Burton)

Date: Thu, 27 Dec 2007 14:13:28 -0600
From: "LTravers" <lat7575@swbell.net>
Organization: CV-6 Enterprises
To: Jerome & Elizabeth Moos <jerrymoos@sbcglobal.net>
Subject: re: [CR] 70's vintage triple crankset...about those Avocet triples
cc: Classic Rendezvous <classicrendezvous@bikelist.org>

>
> The Avocet triples were drilled with two different inner circles. The
> one I referred to was 102 mm, just 2 mm larger than Campy NR triple at 100
> mm (now why couldn't they standardize that?). The smaller one was 74 mm
> as you say and would take a 24T ring. The 102 circle would take a 32T.
> Sutherland's shows 36T as the smallest for Campy NR triple, but they show
> a Merz ring at 100 BCD as low as 31T.

snippage for brevity's sake...

Jerry...I have an Ofmega CX triple, which I am told is the same as the Avocet you are referring to here. I measured the "second" set of holes and came up with 100mm via calculation, (measure between two adjacent bolt holes and multiply by 1.7) but I suppose it could be 102mm due to error in my measurement.

So the question...do you know for sure it is 102mm and who offers a 102 BCD ring. I have never seen or found one. For that matter, who offered 100 BCD?

Thanks

--
Lynn Travers
Hazelwood, MO