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  1. #1
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    when were dura ace center pulls made

    I bought a big box o' bike junk the other day and came across 2 sets of dura ace center pull brakes. Neither set looks all that nice, and neither has pads. I couldn't recall ever seeing these things before, but a friend at the shop vaugely remembers them from the 70's.

    Thanks

  2. #2
    Knows Bigfoot's Momma
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    They're from the early '70s, possibly even before there was a complete Dura-Ace group around. Not quite the quality of the first Dura-Ace sidepulls, and the levers I'd seen for 'em used the "safety bars". I think they were intended for use on nice mid-range bikes, whereas the sidepulls were "pro" quality.

  3. #3
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    I believe that the Dura Ace centerpulls were only produced in 1973?

    Marty
    Sono più lento di quel che sembra.
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  4. #4
    don d.
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    I'm not 100% certain, but I think the Dura Ace CPs and the Tourney CPs were the same casting, with the Duraccee's just gussied up a little.

  5. #5
    can't member Noah Scape's Avatar
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    Quote Originally Posted by don d.
    I'm not 100% certain, but I think the Dura Ace CPs and the Tourney CPs were the same casting, with the Duraccee's just gussied up a little.
    I think this is correct. I remember the Tourney and D-Ace looked exactly the same. The Shimano CPs were very angular – unlike the Mafac and Weinmann CPs of the 60s and 70s which had more curved calipers.
    Last edited by Noah Scape; 03-03-05 at 01:56 PM.

  6. #6
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    The Dura Ace centre pulls were also produced in 1974 and 1975, or they had a huge surplus and were still be used on bikes during that time period. They used a higher strength alloy than the similar Tourney. As TheOtherGuy states, they were seen primarily on the mid range bicycles, with the top end bikes usually getting the Dura-Ace sidepull.

  7. #7
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    The other guy, is that a photo from the movie Zoolander?

  8. #8
    Knows Bigfoot's Momma
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    Quote Originally Posted by james Haury
    The other guy, is that a photo from the movie Zoolander?
    That's how I look after a couple cups of good coffee.

    (yup; zoolander)

  9. #9
    don d.
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    Actually, the calipers seem significantly different from each other. Oddly, the Dura ace calipers look like a rougher finish than the Tourneys in these photogs courtesy of Classic Rendezvous.com and Firstflightbikes.com respectively.

  10. #10
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    Quote Originally Posted by don d.
    Actually, the calipers seem significantly different from each other. Oddly, the Dura ace calipers look like a rougher finish than the Tourneys in these photogs courtesy of Classic Rendezvous.com and Firstflightbikes.com respectively.
    There were several versions of the Tourney brakes over the years. The mid-'70s version was the Dura Ace clone. Even then, I seem to recall some minor variations, from year to year, within the basic design. The photo from Firstflightbikes is a completely different generation.

  11. #11
    don d.
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    Quote Originally Posted by T-Mar
    There were several versions of the Tourney brakes over the years. The mid-'70s version was the Dura Ace clone. Even then, I seem to recall some minor variations, from year to year, within the basic design. The photo from Firstflightbikes is a completely different generation.
    Interesting. My 20th anniversary 6th edition of Sutherland's, which includes virtually every part ever made from 1974(and some earlier)through 1996, shows only one model of Shimano Tourney Center Pull ever made, model #BR-TC10,30 in two reach specs, 54.4 and 66. Which "generation" were you thinking of?
    Last edited by don d.; 03-06-05 at 03:23 PM.

  12. #12
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    I've taken apart the dura ace brakeset and a Tourney set. While the castings are very similar, they are definetely from different molds. About the only improvement in the dura ace set over the tourney is the use of bushings in the pivots on the dura ace.

    And I have two models of tourney CPs. One like the picture from firstflight and another that uses a lever actuated quick release.

  13. #13
    don d.
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    Quote Originally Posted by sculptor
    And I have two models of tourney CPs. One like the picture from firstflight and another that uses a lever actuated quick release.
    They should have the model # on them. Could you post them? Possibly pictures?

  14. #14
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    The tourneys have small two-letter stampings on (BK, BJ) them. Nothing that looks like a Shimano model number though. I am currently without a camera, but that may change in the next day or two. I'll post pictures as soon as I can.

  15. #15
    Senior Member Citoyen du Monde's Avatar
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    Quote Originally Posted by sculptor
    The tourneys have small two-letter stampings on (BK, BJ) them. Nothing that looks like a Shimano model number though. I am currently without a camera, but that may change in the next day or two. I'll post pictures as soon as I can.
    BK is the date code for November 1977, BJ for October 1977.

  16. #16
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    Quote Originally Posted by don d.
    Interesting. My 20th anniversary 6th edition of Sutherland's, which includes virtually every part ever made from 1974(and some earlier)through 1996, shows only one model of Shimano Tourney Center Pull ever made, model #BR-TC10,30 in two reach specs, 54.4 and 66. Which "generation" were you thinking of?
    Don, I appreciate your confusion. Normally, Sutherland's is a very comprehensive resource. The Tourney brakes which are Dura-Ace clones, were the same vintage as the Dura-Ace, 1973-1975. They may have ran a little longer, but they were definitely from that era. I'm pretty sure there are no model numbers or date codes, given the timeframe, but I'd have to check the junk bin to be sure. I think I have a pair lying around.

    Given the Dura Ace clone, the First Flight Bikes version and Sculptor's QR model, we have 3 distinct editions, so far. Actually, the QR model sounds reminescent of the version modelled on the original Shimano 600 CP. The timeframe would be correct.

  17. #17
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    Shimano also made the Shimano Dura Ace AX for 2 years starting in 1981 with center pull brakes. Lance continued to use this design for the front brake on his time trial rig until last year since he claimed it to be more aero than anything currently available.

    Here is a link to what they looked like:

    http://www.classicrendezvous.com/Ita...mm_AX_prts.htm
    Last edited by ewitz; 03-07-05 at 08:50 AM.

  18. #18
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    Here's a picture of the Dura Ace brake next to two Tourneys. I have a Shimano 500 brakeset that uses the same quick release arm as the Tourney. Sorry the picture isn't great, it's my first attmept with a digital camera.

  19. #19
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    And here's the final piece to the puzzle, the 1973-1975 Tourney brakes. No date codes or model numbers. You can make your own decision as to how closely they match the Dura Ace calipers.

  20. #20
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    Quote Originally Posted by T-Mar
    And here's the final piece to the puzzle, the 1973-1975 Tourney brakes. No date codes or model numbers. You can make your own decision as to how closely they match the Dura Ace calipers.
    Sorry, the upload didn't work! Let's try again.

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