Jerry,
You are absolutely correct with respect to 3ttt handlebars being made exclusively with a 26 mm center section, at least for their standard retail offerings from 1966 through 1978 (...and I suspect beyond that date range) based upon the literature that I have at hand.
Robert "any size you want, so long as it's 26 mm" Broderick ...the "Frozen Flatlands" of South Dakota
-------------------------------------------------------------
>From: Jerome & Elizabeth Moos <jerrymoos@sbcglobal.net>
>To: LTravers <lat7575@swbell.net>, classicrendezvous@bikelist.org
>Subject: Re: [CR]WTB: Handlebars...25.0-25.4 clamping
>section...Cinellipreferred
>Date: Thu, 3 Aug 2006 05:13:42 -0700 (PDT)
>
>I'm not sure TTT ever made bars with a 25.0 or 25.4 center section, unless
>it was when they were called Ambrosio. All the TTT bars I've seen were
>26.0. The mid-70's Raleigh Pros did use a TTT stem with slightly
>mismatched 25.4 GB bars, but that's another story.
>
> Regards,
>
> Jerry Moos
> Big Spring, TX
>
>
>LTravers <lat7575@swbell.net> wrote:
>
>I was limiting myself to TTT
>on this, but I came across a 22.0 Cinelli stem. Prefer Cinelli, will
>consider other brands. The bike will be a rider, so NOS is not
>needed...but I would not turn it down.
>
>Thanks
>
>Lynn Travers
>Hazelwood, MO