Been working on this and got a surprise
#1
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Been working on this and got a surprise
84 PX10
Was debating which derailleurs to fit when I noticed something about the NR derailleurs I have.
One is an 82 other is an 83 so either would be appropriate,
One has quite a difference from the other .
You educated lot will spot the difference I am sure :-)
But then I noticed a bit of a mangle on the back of one .!
ouch
Should look like this !
Now do I try and file/ reshape the mangled stop ?
Do I leave it alone ?
What opinions about this out there ?
Thanks
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84 PX10
Was debating which derailleurs to fit when I noticed something about the NR derailleurs I have.
One is an 82 other is an 83 so either would be appropriate,
One has quite a difference from the other .
You educated lot will spot the difference I am sure :-)
But then I noticed a bit of a mangle on the back of one .!
ouch
Should look like this !
Now do I try and file/ reshape the mangled stop ?
Do I leave it alone ?
What opinions about this out there ?
Thanks
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#4
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Anyone spot the difference between the two? ( apart from the damage )
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That is why I said about switching the cages depending on whether you want to use the short or longer one with the unmolested body.
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The other difference is the typeface on the pivot bolts.
-Kurt
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It may depend in part on how large a freewheel you plan to use and therefore how forward and up the rear derailleur cage can sit and still work properly for you. It may not matter much at all.
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84 PX10
Was debating which derailleurs to fit when I noticed something about the NR derailleurs I have.
One is an 82 other is an 83 so either would be appropriate,
One has quite a difference from the other .
You educated lot will spot the difference I am sure :-)
But then I noticed a bit of a mangle on the back of one .!
ouch
Should look like this !
Now do I try and file/ reshape the mangled stop ?
Do I leave it alone ?
What opinions about this out there ?
Thanks
If it was necessary to fit the frame, put it on the frame, tune it up and go forward.
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#12
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I would default with the 83 RD as the subject bike is a 1984 Peugeot PX10...... but that's just picky me.....
Last edited by Chombi1; 07-06-19 at 09:38 PM.
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The arms down to the cable clamp bolt are odd on the right one. I hadn't noticed one like that before. I'll have to look at mine tonight.
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Have a couple of others in the stash . will compare and see how different .
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Nice bike and components!!!!!!
I don't know if it's the pics but beware that the top limit screw on the right RD is a little bent.
I don't know if it's the pics but beware that the top limit screw on the right RD is a little bent.
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#20
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Different Pulley Cages???
The pulley cage on the dérailleur on the right looks like the longer cage that came on 2nd generation Super Record 4001 dérailleurs. They had titanium pivot bolts with an advertised capacity of a 28T FW vs. 26T for the NRs.
I've heard tales of Campy employees assembling bootleg derailleurs out of parts that they "acquired" from the factory. If true, that would explain some of the weird mismatched Campy RDs that show up from time to time.
@Road Fan "Was it necessary to fit the French frame?"
The unrealistic fear many cyclists have about any French bikes or components drives me (more) nuts as in simplexnut!!! Please do some research before breaking out the tar brush!
In the late 70's Simplex introduced their new style dropouts that worked with most derailleurs on the market including the de facto standard Campagnolo design.
These were used on a lot of better quality French bikes up into the early 90's. I have them on 7 of my top end French bikes: Gitane, Motobecane & Peugeot.
Before these came out, 10-15 minutes of work could modify the old proprietary Simplex dropouts that so many cyclists fear and/or loathe. This allowed most brands of dérailleurs to fit on them.
@1simplexnut your bike is made of Reynolds 531 Professionnel which had the same wall thickness as Reynolds 753R. It should be a supper smooth riding bike. The handling will be great too
verktyg
I've heard tales of Campy employees assembling bootleg derailleurs out of parts that they "acquired" from the factory. If true, that would explain some of the weird mismatched Campy RDs that show up from time to time.
@Road Fan "Was it necessary to fit the French frame?"
The unrealistic fear many cyclists have about any French bikes or components drives me (more) nuts as in simplexnut!!! Please do some research before breaking out the tar brush!
In the late 70's Simplex introduced their new style dropouts that worked with most derailleurs on the market including the de facto standard Campagnolo design.
These were used on a lot of better quality French bikes up into the early 90's. I have them on 7 of my top end French bikes: Gitane, Motobecane & Peugeot.
Before these came out, 10-15 minutes of work could modify the old proprietary Simplex dropouts that so many cyclists fear and/or loathe. This allowed most brands of dérailleurs to fit on them.
@1simplexnut your bike is made of Reynolds 531 Professionnel which had the same wall thickness as Reynolds 753R. It should be a supper smooth riding bike. The handling will be great too
verktyg
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Last edited by verktyg; 07-10-19 at 03:46 AM.
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#21
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not far from the truth !
Seems like the derailleur is a bit of a hotchpotch of parts ? Super record pulley cage? and titanium bolt .
So your is all good :-)
Will chuck it on and see how it goes.
Incidentally bike came with super record levers and NR ? calipers
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The pulley cage on the dérailleur on the right looks like the longer cage that came on 2nd generation Super Record 4001 dérailleurs. They had titanium pivot bolts with an advertised capacity of a 28T FW vs. 26T for the NRs.
I've heard tales of Campy employees assembling bootleg derailleurs out of parts that they "acquired" from the factory. If true, that would explain some of the weird mismatched Campy RDs that show up from time to time.
@Road Fan "Was it necessary to fit the French frame?"
The unrealistic fear many cyclists have about any French bikes or components drives me (more) nuts as in simplexnut!!! Please do some research before breaking out the tar brush!
In the late 70's Simplex introduced their new style dropouts that worked with most derailleurs on the market including the de facto standard Campagnolo design.
These were used on a lot of better quality French bikes up into the early 90's. I have them on 7 of my top end French bikes: Gitane, Motobecane & Peugeot.
Before these came out, 10-15 minutes of work could modify the old proprietary Simplex dropouts that so many cyclists fear and/or loathe. This allowed most brands of dérailleurs to fit on them.
@1simplexnut your bike is made of Reynolds 531 Professionnel which had the same wall thickness as Reynolds 753R. It should be a supper smooth riding bike. The handling will be great too
verktyg
I've heard tales of Campy employees assembling bootleg derailleurs out of parts that they "acquired" from the factory. If true, that would explain some of the weird mismatched Campy RDs that show up from time to time.
@Road Fan "Was it necessary to fit the French frame?"
The unrealistic fear many cyclists have about any French bikes or components drives me (more) nuts as in simplexnut!!! Please do some research before breaking out the tar brush!
In the late 70's Simplex introduced their new style dropouts that worked with most derailleurs on the market including the de facto standard Campagnolo design.
These were used on a lot of better quality French bikes up into the early 90's. I have them on 7 of my top end French bikes: Gitane, Motobecane & Peugeot.
Before these came out, 10-15 minutes of work could modify the old proprietary Simplex dropouts that so many cyclists fear and/or loathe. This allowed most brands of dérailleurs to fit on them.
@1simplexnut your bike is made of Reynolds 531 Professionnel which had the same wall thickness as Reynolds 753R. It should be a supper smooth riding bike. The handling will be great too
verktyg
Yes i think you have nailed down the cage difference .
I guess it will work ok with this set up ?
I have another frame the same that I really like riding but it is very very clean and tidy
Saw this rather well used frame come up and thought could use it without worrying about bending it etc .
Luxury !
Interesting to see the tensile difference of 531p to 753 .
thanks for the input folks
#23
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the other one
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Nice. I wish more of the seatpost showed, but fit trumps style every time.
What's holding it upright, is part of it that little gray thing at the front of the rear wheel? Don't tell me it's photoshop.
PS are you by the coast? I thought New Zealand was full of hills.
What's holding it upright, is part of it that little gray thing at the front of the rear wheel? Don't tell me it's photoshop.
PS are you by the coast? I thought New Zealand was full of hills.
Last edited by Last ride 76; 07-10-19 at 10:05 AM.
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The only difference between NR and SR cages is the guide pulley sits about 1cm lower on the SR. This allows it to handle the 28t cog. (It also makes it a little harder to shift down to the 13t though). The distance between pulleys is identical, so same overall chain capacity. I have swapped SR cages onto NR derailleurs just like yours.
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