Installation Problems on a PR-10
#1
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Installation Problems on a PR-10
So I ordered up my compenets for my PR-10 and i have gotten around to installing them this last weekend... I got the old 73 Criteruim RD off... The mounting bolt goes through a hole drilled through the rear drop out hangar (threadless) and screws into the back of the RD. The new RD (a Shimano RD 6400) has a threaded shaft that I assume is supposed to screw into the drop out hangar. Is there an adapter that I can use? The drop out hangars are fixed on my PR-10.
#2
The hole in the hanger has to be tapped and the hanger has to be reshaped to form a stop.
Don't do it if you care about the collector value of the PR-10. Get a Simplex that will fit with no modification.
Don't do it if you care about the collector value of the PR-10. Get a Simplex that will fit with no modification.
Last edited by Grand Bois; 04-13-15 at 09:15 AM.
#3
Senior Member


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From: Port Angeles, WA
Bikes: A green one, "Ragleigh," or something.
^ That's it in a nutshell; you got two different systems that were never meant to work together. I first ran into this when I started refurbing my brother in law's 1979 PKN10. You can modify it, or stick with an old Simplex RD.
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● 1971 Grandis SL ● 1972 Lambert Grand Prix frankenbike ● 1972 Raleigh Super Course fixie ● 1973 Nishiki Semi-Pro ● 1979 Motobecane Grand Jubile ●1980 Apollo "Legnano" ● 1984 Peugeot Vagabond ● 1985 Shogun Prairie Breaker ● 1986 Merckx Super Corsa ● 1987 Schwinn Tempo ● 1988 Schwinn Voyageur ● 1989 Bottechia Team ADR replica ● 1990 Cannondale ST600 ● 1993 Technium RT600 ● 1996 Kona Lava Dome ●
● 1971 Grandis SL ● 1972 Lambert Grand Prix frankenbike ● 1972 Raleigh Super Course fixie ● 1973 Nishiki Semi-Pro ● 1979 Motobecane Grand Jubile ●1980 Apollo "Legnano" ● 1984 Peugeot Vagabond ● 1985 Shogun Prairie Breaker ● 1986 Merckx Super Corsa ● 1987 Schwinn Tempo ● 1988 Schwinn Voyageur ● 1989 Bottechia Team ADR replica ● 1990 Cannondale ST600 ● 1993 Technium RT600 ● 1996 Kona Lava Dome ●
#4
feros ferio

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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;
^ That's it in a nutshell; you got two different systems that were never meant to work together. I first ran into this when I started refurbing my brother in law's 1979 PKN10. You can modify it, or stick with an old Simplex RD.
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"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
#6
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I did manage to get the all the components installed onto my bike. With a careful hand, I got the threads tapped into the hangar nicely and I got the new RD+FD-6400 installed along with a new SRAM chain. The bike shifts quite nicely and I am looking forward to taking it for a ride this week. I am defintely curious to know if the new 14-28 freewheel is enough to help me climb some of the hills for my centuries I want to participate in. First one I am going to try to do is Tour Des Chutes.
#8
Bianchi Goddess



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From: Shady Pines Retirement Fort Wayne, In
Bikes: Too many to list here check my signature.
I am not expert on those funky Simplex dropouts but I don't think it will be shifting nicely for very long without a stop for the B tension screw.
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“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk
“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk
#9
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From: on the beach
Bikes: '73 falcon sr, '76 grand record, '84 davidson
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