Yes, the original DA sidepull brakes were very similar to Campy NR except for having a different QR and no rubber O-ring on the adjustors. The EX brakes moved further away from Campy styling and featured "trianglated" upper caliper arms. The parapulls were at least the third generation. Actually at least the fourth, since the first DA brakes were actually centerpulls (with safety levers no less). These came on the Japanese-built Schwinn World Voyageur. I think these CP's predated the original DA group, probably appearing in 1971 or 1972. I'm not sure they were ever sold as part of the group, although they did appear with other DA components on a few bikes including the World Voyageur.
Regards,
Jerry Moos Big Spring, TX
oroboyz@aol.com wrote: << 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 ParaPull? (Wasn't that what uit was called?) It definitely was a late intro..
Dale Brown Greensboro, NC USA
-----Original Message----- From: loudeeter@aol.com To: classicrendezvous@bikelist.org Sent: Tue, 8 Aug 2006 2:57 PM Subject: [CR]Shimano Dura-Ace Timeline
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.
Interesting to me is that Shimano used the dash between Dura and Ace, like this: Dura-ace. This makes it interesting when entering a search in the archives or ebay as often it is spelled without the dash as two words or even as one word, DuraAce. 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.
Lou Deeter, Orlando FL
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