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Old 04-07-13, 04:11 AM   #1
Rest_assured
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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
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Old 04-07-13, 07:18 AM   #2
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Might get answers over at the Classic & Vintage forum.
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Old 04-07-13, 08:45 AM   #3
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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.
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Old 04-07-13, 11:03 AM   #4
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No French threads on that bike.
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Old 04-07-13, 12:36 PM   #5
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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.
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Old 04-08-13, 06:51 PM   #6
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thanks for the help!
BTW anixi, what crankset is on your triathlon?
Cheers
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Old 04-08-13, 06:57 PM   #7
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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?
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Old 04-08-13, 09:03 PM   #8
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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.
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Old 04-08-13, 09:28 PM   #9
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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...
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Old 04-08-13, 10:08 PM   #10
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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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