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  1. #1
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    Peugeot Mont Blanc bottom bracket size?

    Hi all,
    I'm hoping somebody could help me out with the bottom bracket size of my Peugeot Mont Blanc, made in the mid to late 80s as far as I know.
    It is similar to this-
    http://www.pedalroom.com/bike/peugeo...nc-phe-20-3999
    But without the chequered flag design on the down tube (a bit new to the world of vintage bikes, but I think that might give some clue about its exact age?).
    I am unsure of the BB specifics, I understand it might even have a specific type of thread? I.e French vs British...
    Any help would be MUCH appreciated.
    Cheers

  2. #2
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    Might get answers over at the Classic & Vintage forum.

  3. #3
    coprolite fietsbob's Avatar
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    French Thread BB is CW/RH on the fixed cup, British thread BB is CCW/LH thread,
    so which way you have to turn the Wrench to Remove the RT end of the BB is a Clue.

  4. #4
    Senior Member Grand Bois's Avatar
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    No French threads on that bike.

  5. #5
    Jack of all trades anixi's Avatar
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    By 1987 all Peugeots imported to the US/Canada had JIS threads, 1.37" X 24TPI. Correct me if I'm wrong. I have a 1985 Triathlon with BB threaded that way, but, in about 1983/4 they were transitioning from either all French 35X1, or even Swiss as well as JIS in a few. You would do best by taking it to a bike shop to confirm. You never know if your date is incorrect, which could lead to ruining the BB by forcing in the wrong cups.
    Put me back on my bike! -- Tom Simpson

  6. #6
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    thanks for the help!
    BTW anixi, what crankset is on your triathlon?
    Cheers

  7. #7
    Jack of all trades anixi's Avatar
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    Quote Originally Posted by Rest_assured View Post
    thanks for the help!
    BTW anixi, what crankset is on your triathlon?
    Cheers
    Don't follow my example, I'm the most iconoclastic of the entire board! I've got a 10-speed 105, spacers added to the rings to provide clearance for 8-speed chain, running 7-speed (+1) Shimergo. You didn't really want to know did you?
    Put me back on my bike! -- Tom Simpson

  8. #8
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    Quote Originally Posted by anixi View Post
    Don't follow my example, I'm the most iconoclastic of the entire board! I've got a 10-speed 105, spacers added to the rings to provide clearance for 8-speed chain, running 7-speed (+1) Shimergo. You didn't really want to know did you?
    ah ok haha. what happened to the original? i was asking because i think that (maybe) the triathlon and the mont blanc were built with the same cranks, i.e. those great looking white nervar ones (or at least i think they look great).
    i rode past a guy on a triathlon the other day and he had the white nervar cranks.

  9. #9
    Jack of all trades anixi's Avatar
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    Quote Originally Posted by Rest_assured View Post
    ah ok haha. what happened to the original? i was asking because i think that (maybe) the triathlon and the mont blanc were built with the same cranks, i.e. those great looking white nervar ones (or at least i think they look great).
    i rode past a guy on a triathlon the other day and he had the white nervar cranks.
    Sorry, the frame only came with the headset and seatpost (quill type, eek!) and nothing else. I'd like to see the white Nervars though...
    Put me back on my bike! -- Tom Simpson

  10. #10
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    Quote Originally Posted by anixi View Post
    Sorry, the frame only came with the headset and seatpost (quill type, eek!) and nothing else. I'd like to see the white Nervars though...
    here is the catalogue featuring the mont blanc-
    http://www.peugeotshow.com/1987nl/1987_06.jpg
    you can see a close up of the cranks there. couldn't find one with a decent picture of the cranks for the triathlon though. mine still has the original white zefal frame fit pump! missing the bell though..
    anyway, getting off topic. thanks again fro the help!
    cheers

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