http://sheldonbrown.com/
Bob, all I can do is defer to the master, Sheldon Brown. His site even has the pages reprinted from the book I got!! But, he has the 73 catalog link on his site (and above). The brakes in the 1973 catalog are Dura-Ace and sidepulls. So, the actual pair of Dura-Ace calipers that you have that are identical to the Tourney center-pulls have me stumped. I'm not familiar with Shimano center-pulls enough to really comment. Lou Deeter, Orlando FL
New Word Definition: Sarchasm: The gulf between the author of sarcastic wit and the person who doesn't get it.
-----Original Message----- From: theonetrueBob@webtv.net To: loudeeter@aol.com Cc: classicrendezvous@bikelist.org Sent: Tue, 8 Aug 2006 4:35 PM Subject: [CR] Shimano Dura Ace timeline
Hi Lou, Does your information happen to indicate when Dura-Ace had used (and then discarded) their "Center-Pull" brakeset?
I have a 1974 catalog which shows the Shimano center-pulls as "Tourney" components: [model B-110 = 47-65mm... Model B-120 = 57-75mm]. However, I also have an actual pair of Dura-Ace calipers, which were identical, and those did not appear with the '74 listings.
Thanks!
Bob Hanson, Albuquerque, New Mexico, USA