Nuovo Record Rear Derailleur with Roadlink?
I have a Nuovo Record rear derailleur from a 1973 bike that I am restoring. Velobase shows that its max cog and chain wrap sizes are both 26T. What can I expect the max sizes to be if the derailleur is used with a Roadlink? Thanks in advance!
"http://www.velobase.com/ViewComponent.aspx?ID=D8DE34D4-C66F-4C8A-AF5B-0EF99D40F702&Enum=108&AbsPos=62" |
I am running mine on 28T cogs on 2 bikes without issue. Not sure about the roadlink but as a short cage derailleur you are going to be constrained by the chain wrap. Even if you can fit a 32 in the back unless you're running a very close ratio chainring setup your chain capacity just wont be taken up.
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Not to increase capacity, but I've been wondering for a while if one could use a NR with a Roadlink, filed down to allow the RD to pivot forward with the parallelogram more horizontal to make the geometry more Crane-esque.... would it word and would it improve performance?
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Seek out a Campag Rally # 3450 .
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I've used a Pat 72 NR with a 32T cog. That was with NR 52/42 up front. Big/big was super iffy, but everything else was fine. Depends on the chain length, position in the dropouts, and of course the length of the hanger. I've got one of those road link hangers but haven't tried it yet.
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Originally Posted by Lascauxcaveman
(Post 21583544)
I've used a Pat 72 NR with a 32T cog. That was with NR 52/42 up front. Big/big was super iffy, but everything else was fine. Depends on the chain length, position in the dropouts, and of course the length of the hanger. I've got one of those road link hangers but haven't tried it yet.
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Originally Posted by sced
(Post 21583769)
How many speeds?
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I'm wondering if a NR RD + Roadlink + 7sp 14-32 will work
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Originally Posted by sced
(Post 21583939)
I'm wondering if a NR RD + Roadlink + 7sp 14-32 will work
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Super Record Cages on a Nuovo Record derailleur will shift 28T with ease.
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Originally Posted by Lascauxcaveman
(Post 21584330)
Maybe. What's the chainset up front look like? How confident at determining chain length are you? How much leeway do you have on your drop outs?
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Originally Posted by fietsbob
(Post 21583531)
Seek out a Campag Rally # 3450 .
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Originally Posted by tiger1964
(Post 21584822)
This AM's eBay asking prices on a Rally are $200 to $450, ouch.
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Regular NR and with horizontal dropouts can handle 14-32t Ultra-6 using 48-42 chainrings. All shifts are good and everything looks PROPER. Axle position is critical.
The Road Link is going to increase the chain gap over the smaller cogs and not in a good way, especially using modern, flexible chains. Swinging the NR forward to mimic the Crane won't work very well because of the absence of the dropped knuckle (you will lose the ability to clear such a large cog as it swings forward). The Rally with dropped knuckle was made for the job to accommodate a wider gearing range. |
Originally Posted by sced
(Post 21584661)
42/52 rings, good at links, Campy horizontal dropouts. - I am willing and able to give it a try, but am wondering if anyone has done this successfully. I could go 30 max at back or a different RD.
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I was stoked to get a 14/28 freewheel working on my 1972 ItalVega for last years Eroica California event. With a pat 72 NR dereailleur and 52/41 front rings everything is happy. I showed Wes who at the time was helping with the event and he told me 32 is possible if you remove the axel stop screws and pull the wheel as far back as you can. I have not tried it but I am tempted as I live on a hill and am now running 28's on a couple of my bikes. The other bike running a 28 just got switched to a patent 82 Super Record and it works perfectly , big to big , no problem.
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Originally Posted by Kabuki12
(Post 21585155)
I was stoked to get a 14/28 freewheel working on my 1972 ItalVega for last years Eroica California event. With a pat 72 NR dereailleur and 52/41 front rings everything is happy. I showed Wes who at the time was helping with the event and he told me 32 is possible if you remove the axel stop screws and pull the wheel as far back as you can. I have not tried it but I am tempted as I live on a hill and am now running 28's on a couple of my bikes. The other bike running a 28 just got switched to a patent 82 Super Record and it works perfectly , big to big , no problem.
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Just go Shimano Deore/XT/XTR and close your eyes when shifting.
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Originally Posted by dddd
(Post 21584920)
Swinging the NR forward to mimic the Crane won't work very well because of the absence of the dropped knuckle.
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If you were to grind the stop on a RoadLink that far, I don't think that there would be any metal left to act as a stop.
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I had a Pat. 78 shifting on a Shimano 7-speed 28 without breaking a sweat. I'm sure 30 would have worked, maybe 32 with positive vibes...
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Originally Posted by tiger1964
(Post 21584822)
This AM's eBay asking prices on a Rally are $200 to $450, ouch.
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Originally Posted by sced
(Post 21583433)
I have a Nuovo Record rear derailleur from a 1973 bike that I am restoring. Velobase shows that its max cog and chain wrap sizes are both 26T. What can I expect the max sizes to be if the derailleur is used with a Roadlink? Thanks in advance!
Originally Posted by dddd
(Post 21584920)
Swinging the NR forward to mimic the Crane won't work very well because of the absence of the dropped knuckle
Originally Posted by tiger1964
(Post 21586959)
Hmm, wouldn't the RoadLink emulate a dropped knuckle, if ground down to permit the rotation?
Originally Posted by dddd
(Post 21587314)
If you were to grind the stop on a RoadLink that far, I don't think that there would be any metal left to act as a stop.
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i'm going to attempt an '83 super record RD with 16-30 regina 5 speed with 42/52 out front, so when my frame gets back from groodys in a few weeks i'll see wazzup i have a roadlink on hand, but i think by tweeking the chain length i can make it work sans link.
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