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Internal binding seatpost for peugeot PX 10

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Internal binding seatpost for peugeot PX 10

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Old 11-29-09, 08:38 AM
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abbatronic
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Internal binding seatpost for peugeot PX 10

Hi there guys, wondering if anyone can help.

just bought a Peugeot frame 531 professional, which is as far as I can tell from comparing to catalogues online, an 86 PX10. Problem is it doesn't have a slot or ears to bind seatpost. looks like it took an interally binding quill style seatpost. Any ideas where i can get one?

thanks
Paul
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Old 11-29-09, 11:08 AM
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They sell for a lot on ebay (they only show up occasionally). That's the only place I have seen them.
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Old 11-29-09, 11:33 AM
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Do you know the size you need? I might have one.
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Old 11-29-09, 12:16 PM
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Welcome to the "wonderful" world of classic French bikes!
Try and check the big French eBay sellers. They have tons of vintage and classic parts to sell and you might luck out best with them. Did you ask the original owner if he/she still has the seatpost that you might buy from them. I find it a little weird when sellers don't include parts like this seatpost with the frame, specially when it is almost proprietary to the frame.
I just bought a classic French Vitus framed bike myself a few months ago and I would be up a creek without a paddle it if came without some if it's parts that have turned into "Unobtanium" in the past couple of decades......Where the heck will I ever find a 23mm diameter aluminum microadjustable seatpost these days??! Even the small 10mm diameter x 11mm long (Some people have boogers bigger than this thing!) allen head set screw that binds the post to my frame is fast dissapearing with the few still out there now going for as much as $64 a piece!
To find your rare seatpost, you might also consider finding a beat up lower model Peugeot that had it that you might be able to buy for cheap, just to get the seatpost and maybe some other nice enough French components off, if it still looks to be in good condition (An A9 needle bearing Stronglight headset will be a bonus).
Good luck with your build-up and hope you find the parts you need soon!

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Old 11-29-09, 12:30 PM
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I've got one installed in an old Bridgestone that has a small dent in one of the tubes. What size do you need?
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Old 11-29-09, 01:39 PM
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Quality frame deserves a quality post...Last time I checked http://www.matuzmaster.hu/en/ had a few...
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Old 11-29-09, 02:22 PM
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Originally Posted by kpug505 View Post
Quality frame deserves a quality post...Last time I checked http://www.matuzmaster.hu/en/ had a few...
Neat site/store.....did not see any prices posted, plus it's way out there in Hungary. Are they pretty reliable with their sales??
Saw the post (Moser?) Must be really expensive though, but it looks very well made.
Thanks for the link to the site!

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Old 11-29-09, 02:40 PM
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Originally Posted by wrk101 View Post
They sell for a lot on ebay (they only show up occasionally). That's the only place I have seen them.
Ebay is a good bet. Prehaps try ebay.fr and don't forget to translate your search, eg, tige de selle
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Old 11-29-09, 03:12 PM
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You might check this ne out at eBay:
http://cgi.ebay.com/NOS-ATAX-seatpos...item2ea8cd1360
Not sure if it' a quill type post, but I remember that the later 80's Peugeots did use the Atax branded expanded seatposts which looks very much like the one pictured, plus this one seems to have that hole at the top of the post for a bolt.. Price seems reasonable. Won't hurt to ask the seller if this one will work.

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Old 11-30-09, 10:00 AM
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Wow, really!? It's 26.2.
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Old 11-30-09, 10:19 AM
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Buying a low end Peugeot just for the seatpost is not a good idea since a low end Peugeot will have thicker tubes and use a smaller size. There's little chance that yoil find a Stronglight A-9 on a low end Peugeot. either!
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Old 11-30-09, 10:26 AM
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If its a Reynolds 531 Pro (SL) tubed frame it takes a something in the 27.0-27.2mm range.

Chombi, the post in your link is NOT an internaly expanding post.
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Old 11-30-09, 11:59 AM
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Originally Posted by abbatronic View Post
Wow, really!? It's 26.2.
Sorry, mine's not the right size. Maybe randyjawa's will fit.
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Old 11-30-09, 03:04 PM
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I've got a Bridgestone 100 10-speed with a quill style seatpost, not sure what size/diameter it is. I also don't know how much the quill style seatposts sell for on auction sites, maybe I should check.

Anyway, check other brands locally that used those seatposts.
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Old 11-30-09, 03:16 PM
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Originally Posted by Chombi View Post
Didn't the Reynolds 501 framed 84 PGN, I think, have the expanding seatpost. It was kinda on the lower end of their middle model range and there's enough of them that come up at Ebay in varying condition and prices. I also thought that some of the 80's "Triathlon models might have the expanding seatposts.
I recall owning a mid 80's Peugeot for about 12 hours a number of years ago, think it was that PGN model you're talking about with that expander post, or was it the jamb bolt, in either case I just recall it being funky and being glad to sell it the next day.
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Old 11-30-09, 03:18 PM
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Originally Posted by Dirtdrop View Post
Buying a low end Peugeot just for the seatpost is not a good idea since a low end Peugeot will have thicker tubes and use a smaller size. There's little chance that yoil find a Stronglight A-9 on a low end Peugeot. either!
Didn't the Reynolds 501 framed 84 PGN, I think, have the expanding seatpost. It was kinda on the lower end of their middle model range and there's enough of them that come up at Ebay in varying condition and prices. I also thought that some of the 80's "Triathlon models might have the expanding seatposts.
I like/trust the expanding seatpost better than the kinda goofy seat post jamb bolt system used on my 84 PSV....what were they thinking when they came out with that!???
The OP said it's a 26.2mm diameter, which I thought was a size that Peugeot used on their bikes.
Towards the end of the 80's so many bikes had A9 headsets that it wasn't such a big deal anymore. There's still a good chance to find them used on not so expensive models of Peugeots and Treks.

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Old 11-30-09, 06:03 PM
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1984 used the set screw in the back of the seat tube. Some mid to high end models began using the internaly expanding post in 1985 but it was mostly Super Vitus 980 frames. There is no way a Reynolds 531 pro frame uses a 26.2...maybe a 27.2, but NOT 26.2.
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Old 11-30-09, 06:13 PM
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You think that all Peugeots use 26.2 seatposts? None of mine do.

I'm not aware that Peugeot ever used the Stronglight A-9.
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Old 11-30-09, 06:37 PM
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Originally Posted by Dirtdrop View Post
You think that all Peugeots use 26.2 seatposts? None of mine do.

I'm not aware that Peugeot ever used the Stronglight A-9.
No, but I remember seeing some models with that unusual expanding wedge seatpost with that size called out. I made a word error using the word "the" on my previous post instead of "a size", that I now corrected.
Uhmmm........ my 84 PSV came with an A9 headset as standard, and it's cetainly not a top of the line bike from Peugeot. I also thought that the mid 80's PGNs came with the A9. The design of the A9 isn't really expensive engineering when you really look at it's parts. It's most likely much cheaper to make than other Stronglight headset models that came up riight after it. It was just an elegant/cost effective design that really worked and lasted a long time.
BTW, my 84 PSV has a proprietary 26.4 post made by JPR with a groove on the back. The PY10FC could have a 25 as with other Vitus CF based bikes do. The later PX10s could have a 27.2. There's no common size seatpost with Peugeots as you go from model to model, specially with Peugeot using all sorts of tubing brands and models back then. I do agree with a previous poster though that a 26.2 seatpost is a strange size to find on a bike with Reynolds 531 tubing. 27.2 is the standard for that tubing. Is the OP sure he has a PX10??

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Old 11-30-09, 10:05 PM
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The standard seatpost size for metric 531 tubing is not 27.2. The walls would have to be paper thin. My PX10 takes a 26.4.

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Old 11-30-09, 10:18 PM
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Originally Posted by Dirtdrop View Post
The standard seatpost size for metric 531 tubing is not 27.2.]
You are correct but the bike in question is constructed with Imperial sized tubing. Reynolds phased out metric tubing as the supply of metric lugs dried up in the early 80's. The phase out of metric tubing also coincided with the rebranding of the Reynolds line around the same time period.

This is a copy of an e-mail I received from Reynolds:

Jim

it's a guess, but I would say metric until early 1980's then change to imperial.

The whole range was revamped in 1981 so it could have changed then,

I have 1978 UK lit with metric & imperial
I have 1981 UK lit with only imperial

I have 1980 French lit with metric.

In the 1970's there was only France, Spain and Switzerland that used metric tubes. All others used imperial as today, but refer to it as metric measure, ie 1" = 25.4 etc

These 3 all changed to imperial as the supply on metric lugs dried up. (pre TIG welded frames)

Terry
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Old 11-30-09, 11:41 PM
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Could OP's bike be one of those last gasp transitionary bikes that Peugoet issued in the mid 80s......just like my 84 PSV that was "gifted" by Peugeot with the oh-so-obsolete back then already, Swiss threaded BB! Almost like a joke that could become sick when I have to eventually pay mucho mullah to replace it with a Phil Wood Swiss threaded bb sometime in the future when the fixed cup finally wears out on it.

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