Re: [CR]Shimano Dura-Ace Timeline

(Example: Production Builders:Cinelli:Laser)

In-Reply-To: <8C88933A7370702-12C0-2859@FWM-D28.sysops.aol.com>
References: <8C88933A7370702-12C0-2859@FWM-D28.sysops.aol.com>
Date: Tue, 8 Aug 2006 15:40:33 -0400
To: loudeeter@aol.com, classicrendezvous@bikelist.org
From: "Sheldon Brown" <CaptBike@sheldonbrown.com>
Subject: Re: [CR]Shimano Dura-Ace Timeline


At 2:57 PM -0400 8/8/06, loudeeter@aol.com wrote:
>I just got a book that has some dates of introductions for on-topic
>Shimano componentry. Here are some of the highlights:
>
>1973: First generation Dura-Ace, with Crane Derailleur.
>1976: Dura-Ace 10 components, featuring a new 10mm chain pitch
>standard, introduced for track.
>1978: Dura-Ace EX group is introduced. Interesting features
>include an 11 tooth cog and a freehub that takes cassette cogs.
>1980: Dura-Ace AX introduced. Aerodynamic features, including the
>delta brakeset.

See also my Dura-Ace page: http://sheldonbrown.com/dura-ace
>Interesting to me is that Shimano used the dash between Dura and
>Ace, like this: Dura-ace.

Actually, it's "Dura-Ace" with a capital "A". It's a hyphen, not a dash.
>This makes it interesting when entering a search in the archives or
>ebay as often it is spelled without the dash as two words

Most computer search algorithms ignore hyphens and other punctuation.
>or even as one word, DuraAce.

That is, of course an issue. The Dura-Ace issue is much more clear cut than the "Sun Tour"/"SunTour" issue or the "Hetchins"/"Hetchin's" issue, Shimano has been pretty consistent about Dura-Ace.
>I also thought the delta brakeset came with the first generation
>Dura-Ace in 1973, although there is no mention of that innovation
>until the 1980 Dura-Ace AX introduction.

The infamous Delta brake was Campagnolo. Dura-Ace had a roller-cam brake that looked a bit like a Delta, but used a totally different mechanism.

Sheldon "Dura-AH-chay" Brown +----------------------------------------------------+ | A little inaccuracy sometimes saves tons of | | explanation. --H.H.Munro ("Saki")(1870-1916) | +----------------------------------------------------+ --
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