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Peugeot PXN10 Super Competition From A Thrift Store

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Peugeot PXN10 Super Competition From A Thrift Store

Old 06-18-22, 04:40 PM
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Pcampeau
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Peugeot PXN10 Super Competition From A Thrift Store

This has been sitting at a thrift store and on Craigslist at $150 for a couple of months now. I finally stopped in and picked it up today. It’s not a well put together ad and that’s probably why it didn’t sell until I bought it. Here are the pics from Craigslist.




A few things:

The dropouts are Simplex and the rear derailleur is Shimano Altus so that should mean the derailleur hanger has been altered. I’m happy that the hanger is still present and usable in some way.

Actually, most of the parts have been changed to Shimano. Front derailleur is also Altus, brake levers are 600, the crankset is 600, the shift levers are 600EX (I’m guessing the threading was probably changed here?), the hubs are Shimano of some sort but I’m not not sure which type.

The fork has some pitting from rust but it’s not bad at all, it’ll look great when I get done polishing it.

Here are my pics in the sunlight from when got it home earlier today.






Serial # 9103143
Is this 1979?

Truthfully, I’d prefer the French parts instead of Shimano but what’s in place here should make a pretty good ride. They all look to be from the period correct era, 1980 or so. I’ve already got a 1982 Spidel equipped PY10 in the same color and graphic scheme, no need for me to try and copy it. This will work for now. Maybe I’ll trade this one someday for a blue one, who knows? I’ll tear it down tomorrow and begin the refurb. New tires, bar tape, cables, bearings, that’s about it.

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Old 06-18-22, 04:42 PM
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A few more pics:



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Old 06-18-22, 05:00 PM
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Originally Posted by Pcampeau
This has been sitting at a thrift store and on Craigslist at $150 for a couple of months now. I finally stopped in and picked it up today. It’s not a well put together ad and that’s probably why it didn’t sell until I bought it. Here are the pics from Craigslist.


The dropouts are Simplex and the rear derailleur is Shimano Altus so that should mean the derailleur hanger has been altered. I’m happy that the hanger is still present and usable in some way.

. . .






Serial # 9103143
Is this 1979?

Truthfully, I’d prefer the French parts instead of Shimano but what’s in place here should make a pretty good ride. They all look to be from the period correct era, 1980 or so. I’ve already got a 1982 Spidel equipped PY10 in the same color and graphic scheme, no need for me to try and copy it. This will work for now. Maybe I’ll trade this one someday for a blue one, who knows? I’ll tear it down tomorrow and begin the refurb. New tires, bar tape, cables, bearings, that’s about it.
Nice pick up at $150. I'm with you, I would have much preferred the original parts but this is a good bike. I'm riding my 1983 PXN 10 tomorrow. Actually the drop out has not been modded. This generation of simplex drop outs will work either with a simplex or a campy RD.

Is there a way to tell the date from the serial no. for Peugeots? I've always gone by the catalog.
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Old 06-18-22, 05:08 PM
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The serial number indicates October 1979 frame manufacture. That's late enough in the calendar year that it should be a 1980 model. By this time, Simplex had introduced a version of their droput with a integral derailleur stop and factory threading, to accommodate non-Simplex derailleurs. This may be what you have, though I wouldn't expect one on a Peugeot.

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Old 06-18-22, 06:31 PM
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Originally Posted by T-Mar
The serial number indicates October 1979 frame manufacture. That's late enough in the calendar year that it should be a 1980 model. By this time, Simplex had introduced a version of their droput with a integral derailleur stop and factory threading, to accommodate non-Simplex derailleurs. This may be what you have, though I wouldn't expect one on a Peugeot.
My 1980 PKN-10 happily took a SunTour Cyclone II rear derailleur, no problem.
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Old 06-18-22, 06:43 PM
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Originally Posted by T-Mar
The serial number indicates October 1979 frame manufacture. That's late enough in the calendar year that it should be a 1980 model. By this time, Simplex had introduced a version of their droput with a integral derailleur stop and factory threading, to accommodate non-Simplex derailleurs. This may be what you have, though I wouldn't expect one on a Peugeot.
Why wouldn't you expect that dropout on a Peugeot? That's what I have on my Peugeot.
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Old 06-18-22, 07:03 PM
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Great score. That one definitely needs your massaging but it should come to life with not too much effort. Nice tires for just about all terrain. You have been scoring lately , good to see. I love the chain ring drilling . I can’t wait to see it on your first ride.
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Old 06-18-22, 07:55 PM
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Originally Posted by John E
My 1980 PKN-10 happily took a SunTour Cyclone II rear derailleur, no problem.
[QUOTE=bikemig;22546352]Why wouldn't you expect that dropout on a Peugeot? That's what I have on my Peugeot.[/QUOTE]

I didn't think that Simplex had changed the mounting system on their derailleurs quite this early.
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Old 06-18-22, 08:45 PM
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All of your replies are much appreciated! It appears that there may not have been damage inflicted to the derailleur hanger like I thought there was. All the better to learn it’s likely not damaged. You’ve all got curious now to get the derailleur off and make certain. I had no idea that Simplex changed their hanger to accommodate other derailleurs. Thanks T-Mar for positively identifying the year of production
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Old 06-18-22, 08:53 PM
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Is there a way to tell the date from the serial no. for Peugeots? I've always gone by the catalog.[/QUOTE]
I believe the first digit being 9 indicates 1979. I’m not sure in exactly which year Peugeots serial numbers began making sense but I know that by this time they can be deciphered as T-Mar has shown. I’m guessing the next two digits being 1 and 0 are how October is determined but I’ll have to defer to T-Mar and other experts to elaborate on that.
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Old 06-18-22, 09:02 PM
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I’ve always loved the script they used for “Super Competition” on these.

Nice score!
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Old 06-18-22, 10:09 PM
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There's a nice classic French race bike under all that "stuff"....
All one needs is a bunch of Mafac, Stronglight and Simplex SLJ components to bring it back
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Old 06-18-22, 10:28 PM
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The 600 crankset looks great on this bike, even if it is not original. Enjoy!
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Old 06-18-22, 10:55 PM
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Originally Posted by Insidious C.
The 600 crankset looks great on this bike, even if it is not original. Enjoy!
I agree. I don’t know where I’d use this crankset if I didn’t keep it here.
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Old 06-18-22, 11:00 PM
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Originally Posted by Chombi1
There's a nice classic French race bike under all that "stuff"....
All one needs is a bunch of Mafac, Stronglight and Simplex SLJ components to bring it back
Wish I could get all that stuff, one day maybe, but as usual I’ve got too much in the queue. It may not be original but it’s basically complete and I wanna ride it soon.
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Old 06-19-22, 12:47 AM
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Originally Posted by Pcampeau
A few more pics:




Looks like that will clean up nicely !!!

A couple of odd things caught my eye about the decals .
Dont recall ever seeing that flash under the Super Competition decal on top tube .
Also looks like a small pug lion at the bottom of the seat tube ??? behind the quite cool Shimano 600 drillium.
And also a couple of tricolour flags ? on bottom of seat tube and downtube.
maybe someone had some extra decals somewhere along the line ?

all good fun .
Thanks for sharing your find
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Old 06-19-22, 03:58 AM
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Originally Posted by 1simplexnut
Looks like that will clean up nicely !!!

A couple of odd things caught my eye about the decals .
Dont recall ever seeing that flash under the Super Competition decal on top tube .
Also looks like a small pug lion at the bottom of the seat tube ??? behind the quite cool Shimano 600 drillium.
And also a couple of tricolour flags ? on bottom of seat tube and downtube.
maybe someone had some extra decals somewhere along the line ?

all good fun .
Thanks for sharing your find
That's the tricolor "Coq de sportif" decal right below the bottle mount.
I don't remember it being in that location on these Peugeots, but maybe I just did not notice..
They are usually on the top tube near the headstock or the seat cluster.....
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Old 06-19-22, 10:33 AM
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Originally Posted by T-Mar
The serial number indicates October 1979 frame manufacture. That's late enough in the calendar year that it should be a 1980 model. By this time, Simplex had introduced a version of their droput with a integral derailleur stop and factory threading, to accommodate non-Simplex derailleurs. This may be what you have, though I wouldn't expect one on a Peugeot.
So a frame nr starting with "812" would indicate 12/1978, 1979 model?

Also, anyone knows what distinguishes this frame fromn a PY10? Because my PY10 has the exact same Reynolds stickers, also says "super competition" on the rear top tube. Only distinguishing feature, from where i'm sitting, is the PY 10 has the lower 3rd of the rear triangle chromed - correct?

Last edited by martl; 06-19-22 at 10:36 AM.
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Old 06-19-22, 10:51 AM
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Originally Posted by martl
So a frame nr starting with "812" would indicate 12/1978, 1979 model?

Also, anyone knows what distinguishes this frame fromn a PY10? Because my PY10 has the exact same Reynolds stickers, also says "super competition" on the rear top tube. Only distinguishing feature, from where i'm sitting, is the PY 10 has the lower 3rd of the rear triangle chromed - correct?
Peugeot serial number format during this era was Bymmxxxx or Yymmxxxx. Lower case 'y' is the last digit of the year. 'mm' is the number of the month. Upper case 'B' and 'Y' are the two Peugeot production facilities, Beaulieu and Romilly. Often, you'll see a space after the production facility or year.

During this era the PY10 was typically Reynolds 531SL, which used the red 531 numbering on the decals versus the green numbers of standard 531. However, there was some variation in the model designations and cosmetics between markets.

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Old 06-19-22, 03:39 PM
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Originally Posted by martl
So a frame nr starting with "812" would indicate 12/1978, 1979 model?

Also, anyone knows what distinguishes this frame fromn a PY10? Because my PY10 has the exact same Reynolds stickers, also says "super competition" on the rear top tube. Only distinguishing feature, from where i'm sitting, is the PY 10 has the lower 3rd of the rear triangle chromed - correct?
Just to illustrate some of the differences between a PY and a PXN model here are some pix of the Reynolds decals and fork crown of my still unrefurbished 1982 PY10. The rear triangle is partially chromed on the PY.

I almost feel like combining these two refurbishings into a PXN and PY super thread but I think they each deserve their own place.

PY10 Reynolds 531 decal

PY10 fork decal and pantographed fork crown.



1980 PXN10 Reynolds 531 decal.

PXN fork crown and Reynolds 531 decal.

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Old 06-19-22, 07:27 PM
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Originally Posted by T-Mar
Peugeot serial number format during this era was Bymmxxxx or Yymmxxxx. Lower case 'y' is the last digit of the year. 'mm' is the number of the month. Upper case 'B' and 'Y' are the two Peugeot production facilities, Beaulieu and Romilly. Often, you'll see a space after the production facility or year...
I wondered if this numbering scheme might apply to my 1979 PXN10E, but the serial on the sticker is pure numerical, 52441xx. Then I found the stamped number, first digit mostly obscured by the riveted chain guide. It appears to start with a B or an 8, followed by 00110xx. So I guess it's January 1980 production (I'd thought it was a '79).
My bike's bottom bracket threading was Swiss, but I was able to nicely (back-and forth using a 1/2" drive breaker bar) force in a 115mm UN71 bottom bracket having alloy cups.
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Old 06-19-22, 09:52 PM
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I spent part of the afternoon today stripping the parts off. As usual a few issues presented themselves. Nothing terrible but a couple things on the frame need to be addressed.

As shown in the photos above the seat post is in terrible condition. The reason for that is because it’s only 25.8mm, surely that’s too small. I’m thinking 26.6 — 26.8 is more what I’m looking for but if anyone knows for certain I’d appreciate if you’d chime in here. Anyway I need to buy a reaming tool now because the tube is ovalized, not extremely bad but definitely oval. I’ve got some other seat tubes that need this treatment so it’s a tool I’ve been needing.


Scarring is deep from over cinching the bolt. Campy or Simplex would have snapped from the tension way before the clamp stopped the too small post from spinning. I’m not sure which brand this one is but it’s my new go to, it’s strong!

It’s a little out of round but perfectly fixable.

Next, I was curious about why a clamp on stop was used when there’s a brazed on cable stop next to it.


Turns out there is some extra brazing material (I think that’s all it could be?) inside plugging the cable entry.
I was hoping to quickly turn this into a build thread but now I’ve got to stuff to order and wait for. For now it will just have to be a polishing and cleaning thread, nothing wrong with that I guess.

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Old 06-19-22, 10:40 PM
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Some photos of the empty frame before cleaning and polishing. Only the headset left to remove. I’ll start cleaning it this week.





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Old 06-20-22, 04:13 AM
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Originally Posted by Pcampeau
I spent part of the afternoon today stripping the parts off. As usual a few issues presented themselves. Nothing terrible but a couple things on the frame need to be addressed.

As shown in the photos above the seat post is in terrible condition. The reason for that is because it’s only 25.8mm, surely that’s too small. I’m thinking 26.6 — 26.8 is more what I’m looking for but if anyone knows for certain I’d appreciate if you’d chime in here. Anyway I need to buy a reaming tool now because the tube is ovalized, not extremely bad but definitely oval. I’ve got some other seat tubes that need this treatment so it’s a tool I’ve been needing.


Scarring is deep from over cinching the bolt. Campy or Simplex would have snapped from the tension way before the clamp stopped the too small post from spinning. I’m not sure which brand this one is but it’s my new go to, it’s strong!
It's an SR Sakae Laprade, nothing too fancy. They are super thick walled, I'd call it a rod with a hole in it rather than a tube, and the one I had to hacksaw in order to remove it from a frame had a super rough grain structure, looked suspiciously like cast instead of forged - the head may be forged though. Don't expect any compliance
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Old 06-20-22, 04:36 AM
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Originally Posted by martl
It's an SR Sakae Laprade, nothing too fancy. They are super thick walled, I'd call it a rod with a hole in it rather than a tube, and the one I had to hacksaw in order to remove it from a frame had a super rough grain structure, looked suspiciously like cast instead of forged - the head may be forged though. Don't expect any compliance
SR Laprade seatposts were the most common "budget" replacement seatposts used in the 80's.
There must have been millions of them made.
Nothing fancy, just got the job done..... At least they looked OK on most C&V bikes because of the flutes they bothered to cast on them and the rail clamping system is simple and effective.
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