Peugeot PY10 frame /bottom bracket issues
09-20-17 | 03:10 PM
#1
Thread Starter
Junior Member
Joined: Sep 2017
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Peugeot PY10 frame /bottom bracket issues
Hi there,
I recently bought a supposedly PY10 frame off the bay with the (probably foolish) intent to build a usable long-distance bike from it. Now, to my mixed horror and joy, I discovered the bottom bracket doesn't appear to have French threading but rather BSA or swiss. Now the question is: which is it?
See pictures of the BB attached.
I recently bought a supposedly PY10 frame off the bay with the (probably foolish) intent to build a usable long-distance bike from it. Now, to my mixed horror and joy, I discovered the bottom bracket doesn't appear to have French threading but rather BSA or swiss. Now the question is: which is it?
See pictures of the BB attached.
09-20-17 | 04:17 PM
#4
Bike Butcher of Portland
Joined: Jul 2014
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From: Portland, OR
Bikes: It's complicated.
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If someone tells you that you have enough bicycles and you don't need any more, stop talking to them. You don't need that kind of negativity in your life.
If someone tells you that you have enough bicycles and you don't need any more, stop talking to them. You don't need that kind of negativity in your life.
09-21-17 | 08:56 AM
#6
feros ferio
Joined: Jul 2000
Posts: 22,411
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From: www.ci.encinitas.ca.us
Bikes: 1959 Capo Modell Campagnolo; 1960 Capo Sieger (2); 1962 Carlton Franco Suisse; 1970 Peugeot UO-8; 1982 Bianchi Campione d'Italia; 1988 Schwinn Project KOM-10;
You can tell quickly by test-threading an ISO adjustable cup into the left side of the BB.
With the usual caveat, my 1980 Peugeot PKN-10 was Swiss-threaded. I force-threaded an aluminum Sugino ISO fixed cup when I switched to a Sugino triple, and it has held nicely for more than a decade.
With the usual caveat, my 1980 Peugeot PKN-10 was Swiss-threaded. I force-threaded an aluminum Sugino ISO fixed cup when I switched to a Sugino triple, and it has held nicely for more than a decade.
__________________
"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069
"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069
09-21-17 | 04:20 PM
#7
Ride, Wrench, Swap, Race
Joined: Jan 2010
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From: Northern California
Bikes: Cheltenham-Pedersen racer, Boulder F/S Paris-Roubaix, Varsity racer, '52 Christophe, '62 Continental, '92 Merckx, '75 Limongi, '76 Presto, '72 Gitane SC, '71 Schwinn SS, etc.
You can tell quickly by test-threading an ISO adjustable cup into the left side of the BB.
With the usual caveat, my 1980 Peugeot PKN-10 was Swiss-threaded. I force-threaded an aluminum Sugino ISO fixed cup when I switched to a Sugino triple, and it has held nicely for more than a decade.
With the usual caveat, my 1980 Peugeot PKN-10 was Swiss-threaded. I force-threaded an aluminum Sugino ISO fixed cup when I switched to a Sugino triple, and it has held nicely for more than a decade.
Testing the left side still might leave the question of whether it's French or Swiss.
I forced a Shimano BSA-threaded cartridge bb into my Swiss-threaded 1979 PX10 Super Competition. The cups were alloy thankfully so I was able to work them in with plenty of back/forth motion using a long breaker bar on the cartridge bb tool.
09-21-17 | 10:43 PM
#8
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The Swiss fixed cup threads go the opposite direction from French fixed cups and goes the same direction as BSC fixed cup threads.....
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72 Line Seeker
83 Davidson Signature
84 Peugeot PSV
84 Peugeot PY10FC
84 Gitane Tour de France.
85 Vitus Plus Carbone 7
86 ALAN Record Carbonio
86 Medici Aerodynamic (Project)
88 Pinarello Montello
89 Bottecchia Professional Chorus SL
95 Trek 5500 OCLV (Project)
09-21-17 | 11:09 PM
#9
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Thanks for all the inputs!
I contacted the seller and he insists it's French threading. So will ask LBS if they have French BB cups later today. If not, it's the bike flea market on 15 Oct. or the Bay again.
Meanwhile, got a pleasant surprise. There's apparently a possibility to attach a derailleur hanger to the existing dropout. That could allow me to use a new (Shimano) derailleur after all.
I contacted the seller and he insists it's French threading. So will ask LBS if they have French BB cups later today. If not, it's the bike flea market on 15 Oct. or the Bay again.
Meanwhile, got a pleasant surprise. There's apparently a possibility to attach a derailleur hanger to the existing dropout. That could allow me to use a new (Shimano) derailleur after all.
09-22-17 | 06:48 AM
#12
feros ferio
Joined: Jul 2000
Posts: 22,411
Likes: 1,876
From: www.ci.encinitas.ca.us
Bikes: 1959 Capo Modell Campagnolo; 1960 Capo Sieger (2); 1962 Carlton Franco Suisse; 1970 Peugeot UO-8; 1982 Bianchi Campione d'Italia; 1988 Schwinn Project KOM-10;
The PKN-10/PY-10/PX-10 BBs were French-threaded until the very late 1970s, when Peugeot finally got it right (left?) and switched to Swiss. As you read, DDDD (1979) and I (1980) both encountered Swiss threading. Many cup manufacturers distinguished the LH thread on the fixed cup with either special markings or rim pattern or a bronze/gold color instead of the usual chrome/silver.
__________________
"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069
"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069
09-22-17 | 02:44 PM
#14
Senior Member
Joined: May 2011
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From: Seattle WA
Bikes: 2009 Handsome Devil, 1987 Trek 520 Cirrus, 1978 Motobecane Grand Touring, 1987 Nishiki Cresta GT, 1989 Specialized Allez Former bikes; 1986 Miyata Trail Runner, 1979 Miyata 912, 2011 VO Rando, 1999 Cannondale R800, 1986 Schwinn Passage
I happen to have the threadless BB from VO that [MENTION=381793]gugie[/MENTION] mentioned that I am not going to use - PM me if interested
