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78 PX10 or PSN10?

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78 PX10 or PSN10?

Old 10-18-19, 06:19 PM
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SB_Greg 
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78 PX10 or PSN10?

I picked this up today. Itís either a PSN10 or Eurospec PX10.

I assume the Campy brakes and hubs were a later upgrade? Interesting to see the Stronglight 99 crankset. Any input is appreciated.










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Old 10-18-19, 06:35 PM
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Here was mine. Forum member Cinco identified it as a PSN-10. Lots of similarities to your bike...

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Old 10-18-19, 06:36 PM
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I think your year is correct but I believe this is a PX10LE.

Wait - can't tell, is the rear triangle chromed at the dropouts?
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Old 10-18-19, 07:11 PM
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No chrome on the stays on this bike. Likewise none on the brochure for the Eurospec PX10. So confusing
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Old 10-18-19, 07:17 PM
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It's a Euro spec PX 10. The PS 10 is main tubes butted 531 with a 531 fork and a PX 10 is full 531 frame and fork. There was about 2 years when the chrome socks were ditched on European PS an PX models. The Stronglight 99 was an OEM alternate fitting to the 105 or 105bis.
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Old 10-18-19, 07:19 PM
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Like my U.S. market '78 PX10LE but mine had chromed stays and Mafac brakes. Maybe the Euro bikes were different.
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Old 10-18-19, 07:30 PM
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Originally Posted by bertinjim View Post
It's a Euro spec PX 10. The PS 10 is main tubes butted 531 with a 531 fork and a PX 10 is full 531 frame and fork. There was about 2 years when the chrome socks were ditched on European PS an PX models. The Stronglight 99 was an OEM alternate fitting to the 105 or 105bis.
Thanks Bert. I wonder how this bike got to SOCAL. Also. Whatís the difference between a PSN10 and a PX10? How can they be differentiated via inspection?

Last edited by SB_Greg; 10-18-19 at 07:34 PM.
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Old 10-19-19, 06:07 AM
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SB_Greg-

Visual inspection easily differentiates them. Check the Reynolds decal on the down tube. The PS will indicate main tubes 531, the decal for the PX will indicate main tubes, forks and stays as 531. In post #1 of the PX 10 look at the 7th photo. In post #2 , look at the 1st photo of the PS 10.

Last edited by bertinjim; 10-19-19 at 05:05 PM. Reason: punctuation
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Old 10-19-19, 09:48 AM
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Jim nailed it! The 531 decal not having '3 Tubes' (sample) was the giveaway, and the layer of gunk on it would suggest it's not added after.

Furthermore, the PX10LE came in US came with Stronglight 99 in '78 (see here) although you'd need to dig on the FR/UK/NL/DE catalogs to read the text on each model and/or review specs grid and see whether the L, LE or whatever others had the 99. I suspect the Campy brakes were a PO upgrade after-the-fact.

Originally Posted by SB_Greg View Post
I wonder how this bike got to SOCAL.
People migrate! And people who would buy a high-end bike like this on the continent it's made would probably want to carry it with them versus leaving it behind and buying new far away from the source. I've bought tons of Euro-market bikes and models which weren't readily imported over here during the years. A lot of them came over with military families stationed abroad. Is/was there a major base anywhere near where you bought the bike? If yes, that may very well be what happened here.
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Old 10-19-19, 09:52 AM
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Originally Posted by SB_Greg View Post
I assume the Campy brakes and hubs were a later upgrade?
I wouldn't call the change to Campy "speed modulators" an upgrade, but hey whatever.
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Old 10-19-19, 10:47 AM
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Jim you get the detective trophy. Thanks!

Originally Posted by bertinjim View Post
SB_Greg-

Visual inspection easily differentiates them. Check the Reynolds decal on the down tube. The PS will indicate main tubes 531, the decal for the PX will indicate main tubes forks and stays as 531. In post #1 of the PX 10 look at the 7th photo. In post #2 , look at the 1st photo of the PS 10.
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Old 10-19-19, 05:04 PM
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SB_Greg-

"A lot of them came over with military families stationed abroad," as francophile commented. I am sure that is the case for your PX 10. I bought a beautiful Peugeot mixte for my wife from a fellow teacher who had been a civilian at a Canadian air base in France teaching in the base elementary school. She brought the bike home, stopped riding and a decade later sold it to us.
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Old 10-19-19, 07:21 PM
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A day of dismantling. Iíll sell/trade the 63cm frame and the Campy Record brake levers and calipers (first picture). Iíll keep the rest (second and third picture). I love these wheels (MA 40 rims and Campy Record hubs)!



Last edited by SB_Greg; 10-19-19 at 07:55 PM.
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Old 11-15-19, 11:56 AM
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At a glance, Reynolds namestyles on 531 downtube decal are slanted for full 531 and horizontal for three main tubes - PRs have std forks and PSs have 531 forks (and a few more upgrades. 531 rear stays are 2mm wider at the tops than humbler tubes.
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