This article and many others on vintage components are reproduced in:
Joe Kossak, A Tribute -- 68 pages, Technical Editor of long gone Bike World magazine, Joe Kossak wrote a series of articles on components that gave a historical overview and covered the parts that were popular in the 1970s; very helpful for restorations. Also a small, mid-70s paperback _Frames_ on the historical development of bicycle frames, some builders in the U.S. (Art Stump, Don Milberger, Tom Ritchey, Colin Laing, and Ritchie Sachs among others) and the early days of aluminum, carbon, and titanium frame development. Color cover. $12
Chuck Schmidt South Pasadena, California http://www.velo-retro.com (list of reprints)
swampmtn wrote:
>
> Mike, Dave, et al,
>
> Here's more info on Ambrosio - TTT
>
> (from "All About Components, Part 3", Bike World magazine, August 1973)
>
> "A current fad is for stems to pull tight with an allen key fitting at the
> top of the expander drawbolt, instead of a regular hexbolt. These usually
> fit 7mm hex key wrench. T.T.T. began this trend about 10 years ago (the
> company was known as Ambrosio then), with their "Gran Prix" model."
>
> and
>
> "The two most popular makes of alloy handlebars among present racers are
> Cinelli and T.T.T. (also sold as Ambrosio)."
>
> Stem models available included Gran Prix, Record (very similar to Cinelli
> 1A), and Adjustable.
>
> This answers a few questions... the company "TTT" of 1973 was known as
> "Ambrosio" 10 years earlier (1963), and "TTT" stems and bars were also sold
> as "Ambrosio" as late as 1973.
>
> By 1978 the I-Pro catelogue only lists TTT "Record" stems, a close design to
> the Cinelli 1A.
>
> Anyone else have further info?
>
> Aldo Ross