can the campy rally RD handle a 7 speed?
07-18-23, 08:35 AM
#1
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can the campy rally RD handle a 7 speed?
We all know and love the larger cogs they can take. And isn't a 7 speed (freewheel, not cassette) the same chain spacing as a 6 speed, just meant for wider (126 or 130) spread?
No reason a friction shifted rally can't handle the extra, right?
Yes, I consulted S. Brown and VeloBase before inquiring.
Robert
No reason a friction shifted rally can't handle the extra, right?
Yes, I consulted S. Brown and VeloBase before inquiring.
Robert
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07-18-23, 09:33 AM
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I've been using a Super Record with a Rally cage for 20 years on a 7 spd. freewheel, plenty of travel. Thats friction with Barcons and a 23 or 24 cog
Last edited by robobike316; 07-18-23 at 05:52 PM.
07-18-23, 10:21 AM
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I have had trouble with my old Campagnolo RALLY 1st gen handling 6 speeds. I think it has to do with my modified Simplex hangar that I tapped. My solution is going to be removing the Simplex hangar and welding on a steel hanger. The tolerances are minuscule actually. I only need to have the RALLY attachment about 3mm lower then the SIMPLEX attachment provides to have the clearance I need. Just 3mm makes a big difference...
So... Can the RALLY handle 7 cogs on a freewheel. Yes... It has the needed travel provided it is positioned on the derailleur hangar properly. Or rather the derailleur hanger puts it in a position to provide that travel.
https://live.staticflickr.com/3252/2...c14dc013d6.jpg
So... Can the RALLY handle 7 cogs on a freewheel. Yes... It has the needed travel provided it is positioned on the derailleur hangar properly. Or rather the derailleur hanger puts it in a position to provide that travel.
https://live.staticflickr.com/3252/2...c14dc013d6.jpg
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No matter where you're at... There you are... Δf:=f(1/2)-f(-1/2)Last edited by zandoval; 07-18-23 at 10:30 AM.
07-18-23, 10:39 AM
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I used a super record with 9 speed. Also with campagnolo dt shifters. I did finally give up and moved over to a slant parallelogram Shimano, but only because the pulleys on the Campagnolo derailleur broke.
I guess I wouldn't recommend it though.
I guess I wouldn't recommend it though.
07-18-23, 11:22 PM
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Mine is a Campy Rallye (2nd gen) easily shifting a 12-36 8-speed cassette. 42-52 up front. Lots of capacity to spare.
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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 ●
Last edited by Lascauxcaveman; 07-19-23 at 10:54 PM.
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