khbrown
09-26-02, 08:47 AM
How many standard cogs can a 1971 era Campy Nouvo Record rear derailler be adjusted to reach? Is 5 the limit or can it be adjusted to cover 7 to 8?
Thanks in advance,
Ken
Thanks in advance,
Ken
Bicycle Mechanics - Early 70's Nouvo Record Derailler
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pokey
09-26-02, 08:53 AM
No actual experience with that one,but all other friction types I have messed with were good for as many as needed. It's in the limit screws. Some are inclined to think a 6 speed SIS rear cannot be used with 9.How wrong they are.
lotek
09-26-02, 08:54 AM
Ken,
I think you can safely get 7 out of it, but 8 might be a stretch.
The real question is how much chain can it wrap, and
maximum rear cog. I don't think you could get a large
cog (more than 26?) handled well. I've got some charts etc.
at home and will post specs later.
Marty
I think you can safely get 7 out of it, but 8 might be a stretch.
The real question is how much chain can it wrap, and
maximum rear cog. I don't think you could get a large
cog (more than 26?) handled well. I've got some charts etc.
at home and will post specs later.
Marty
khbrown
09-26-02, 01:56 PM
Thanks!
pat5319
09-28-02, 12:17 AM
I've done 7 cogs, haven't tried 8, but I think there is enough travel.
It will take a 26, not bigger
Ride Campy be Happy
Pat
It will take a 26, not bigger
Ride Campy be Happy
Pat
John E
09-28-02, 06:54 PM
My 1982 Nuovo Record derailleurs work nicely with 14-speed 50-42 / 13-26 gearing, and I think I would have enough lateral travel to handle 8 or 9 cogs. (You could always use 8 cogs with 9-speed spacers, thereby maintaining your 128mm dropout spread.) However, as the number of cogs and required lateral throw increases, the advantage of a modern slant planograph derailleur (SunTour since 1968, everyone else after 1985, when SunTour's patent ran out) becomes more pronounced. (The fundamental flaw in the design of a traditional parallelogram derailleur is that the cage rises as one shifts toward the larger cogs. In contrast, a slant plano unit will at least approximately track the bottom profile of the cogset. My 1972 short-cage SunTour V derailleur handles 14-speed 52-44 / 14-28 gearing with aplomb.)