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  1. #1
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    Another "what's this part called" question

    I have a circa '77-79 Colnago Mexico. The rear brake bridge is the earlier style before they changed to the block style. Mounting the rear brakes I noticed it appears there's a piece missing. It resembles a spacer that is flat on one side and curved on the other to match the contour of the brake bridge.

    Without the piece the flat washer contacts the curved surface of the brake bridge and does not look correct.

    I saw the part on a 1977 gold plated Olmo on the speedbicycles site. I would post the pic but do not have permission.

    Anybody know what this piece is called? Is this something Campagnolo produced?

    Thanks,

    Kurt

  2. #2
    Senior Member rootboy's Avatar
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    If I understand correctly.......It is a somewhat standard part. Check the Boulder Bicycles web site. Mike Kone was offering some he said were OEM campagnolo parts, though I'm not sure. Concave brake washer, or something like that.

  3. #3
    Old fart JohnDThompson's Avatar
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  4. #4
    category ii hoarder orangeology's Avatar
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    radiused washer
    a.k.a
    radius washer
    a.k.a
    concave brake bridge washer

    and yes. there're Campy branded ones. seen on the 'bay.
    Last edited by orangeology; 03-12-14 at 08:42 PM.

  5. #5
    26 tpi nut. sailorbenjamin's Avatar
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    LBS usually has them.
    I have spoken.

  6. #6
    What??? Only 2 wheels? jimmuller's Avatar
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    Note that the front and rear use a different radius because the front matches the shape of the fork crown.
    Real cyclists use toe clips.
    jimmuller

  7. #7
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    Dia Compe also makes them, they are called "Moon Washers" because if you look at the profile it wraps around the brake bridge like a half-moon.

  8. #8
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    Thanks folks! At Scott's suggestion I took a look at Mike Kone's site. Looks like he has what I'm looking for.

  9. #9
    Senior Member Lascauxcaveman's Avatar
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    I almost started this very thread a couple months ago, as I was looking for an extra one of those at that time, and was trying to figure out what to type in the search field on the big online auction site.

    Then I thought to go over to the LBS across the street and they just gave me one. The guy behind the counter didn't really know what the proper name for one was, either.
    ● 1971 Grandis SL ● 1972 Lambert Grand Prix frankenbike ● 1972 Raleigh Super Course fixie ● 1972 Peugeot UE-18 Mixte ● 1980 Apollo "Legnano" ● 1982 Motobecane Jubile Sport ● 1983 Nishiki Landau ● 1985 Peugeot Vagabond ● 1985 Trek 600 ● 1985 Shogun Prairie Breaker ● 1985 Raleigh Elkhorn ● 1986 Univega Nuovo Sport ● 1986 DeRosa Professional ● 1986 Merckx Super Corsa ● 1987 Schwinn Tempo ● 1990 Cannondale ST600 ●1996 Kona Lava Dome ● And a Bike to Be Named Later ●

  10. #10
    Over forty victim of Fate Cougrrcj's Avatar
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    Quote Originally Posted by Lascauxcaveman View Post
    Then I thought to go over to the LBS across the street and they just gave me one. The guy behind the counter didn't really know what the proper name for one was, either.
    You made me LOL. I've had the same experience with automotive fasteners. Back in the '70s I was working on my dad's '68 F-250 and needed the nylon thingies that the taillight reflectors screwed in to. The local Ford dealer just handed them to me...
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  11. #11
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    On a number of my Italian bikes from the late 60's to mid 70's the rear bridge actually had a brazed in bushing that presented a bit of tube beyond the bridge on the other side of the caliper, if that is the case then a Campagnolo washer and nut without the "moon washer" is correct.

    The mood washer was needed when the bridge was not supported internally to prevent its deformation.

    If you wish to close up the change in surface no problem, but it is not necessarily a requirement in my book.

  12. #12
    Senior Member miamijim's Avatar
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    If you drill through a moon washer you can mount recessed mount calipers to a non recessed frame.
    WWW.CYCLESPEUGEOT.COM 1984 Schwinn Paramount; 1987 Schwinn Paramount; 1975 Tom Ritchey, 198X Vitus

  13. #13
    Senior Member SJX426's Avatar
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    Miamijim, Can't quite get that!? HEY a picture would help!

  14. #14
    Senior Member rootboy's Avatar
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    I can't picture that either. Drill through a moon washer. It already has a hole. Are you saying enlarge the hole to fit a recess nut?
    Guessing so.

  15. #15
    Senior Member rootboy's Avatar
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    Quote Originally Posted by satbuilder View Post
    Thanks folks! At Scott's suggestion I took a look at Mike Kone's site. Looks like he has what I'm looking for.
    BTW. I ordered a few of those too, a long while ago. And i'm not really convinced they are Campy units, myself. They seem a tad too large in diameter to me. But, they work, and look high quality.

  16. #16
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    Quote Originally Posted by rootboy View Post
    I can't picture that either. Drill through a moon washer. It already has a hole. Are you saying enlarge the hole to fit a recess nut?
    Guessing so.
    That is how I picture it. But on some frames the distance between the bridge and the seat tube is not enough to get much of a drill in there, even with a "stubby" bit and a right angle drill.

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