Climbing the walls with Campy--34 x 32 with Potenza/2016 Record

[redir]

Doesn't look in the least bit fugly to me.

[velotel]

Originally Posted by oldpotatoe

Looking at the parts blowup, yes, Chorus and Potenza cages look the same.

Wonder who has the Potenza cage for sale tho..care to share?

JP in the old shop, but the Campy guy asked him not to say the cage works like that. I'll be receiving one hopefully in the not too distant future, alone with a cassette and chain. Now I just need to find new legs or maybe some of that magical juice the pros used, except I hate needles! Oh well, guess I'll have to roll with what I got.

[oldpotatoe]

Originally Posted by velotel

JP in the old shop, but the Campy guy asked him not to say the cage works like that. I'll be receiving one hopefully in the not too distant future, alone with a cassette and chain. Now I just need to find new legs or maybe some of that magical juice the pros used, except I hate needles! Oh well, guess I'll have to roll with what I got.

Ah, 10-4..I know where he got it. It's good to have friends in high places.

[pjmsj21]

Are you limited to the Potenza shifters when using the medium cage derailleur?

[Miller76]

https://cyclingtips.com/2016/12/camp...oupset-review/


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[R3awak3n]

Originally Posted by pjmsj21

Are you limited to the Potenza shifters when using the medium cage derailleur?

Read first post, op is using potentate RD with record shifters.

[oldpotatoe]

Originally Posted by pjmsj21

Are you limited to the Potenza shifters when using the medium cage derailleur?

No..seems 11s rear der is compatible with ALL ERGO, even older 10s ERGO shifters. BUT he's just swapping the cage assembly.

[Tim Porter]

Just to clarify, a couple of approaches have shown up on this thread. As explained in my OP, I just took my all 2016 Record bike (and therefore the latest shifters) and stuck on a Potenza mid-cage RD. Works like a charm so far.

Others have sourced a mid-sized Potenza cage and put it on a Chorus or Record or EPS RD. Seems to work, too.

[woodworker]

Resurrecting this thread because I am going to attempt the swap on EPS rear derailleur. In pulling off the cage from the Potenza derailleur, I note the spring tension and am wondering how I ensure the correct tension when I reinstall the spring and cage. In some of the diagrams, I note that there may be hole or two where the spring end inserts. Perhaps Old Spud or another can provide a tip on this? Any other tips? (I have looked at the Campy website and have noted that there is an upper and lower wheel and the torque requirements on the wheels.)

Thanks in advance for any input. I too will report back on how it works.

Oh, one other thing--in terms of chain length. While it seems at first blush that one might want to run a longer chain because the distance between the pulley wheels is longer, I'm inferring that this is not so because the derailleur at capacity (stretched out) doesn't really require more chain. Am I correct on this?

[Ralph]

I Think you are technically correct......but most of us run about 2 more links with a med cage. Especially if you are using a much larger rear cassette. Maybe start with 4 more and see if it's too sloppy. Easy to take links out....not as easy to add back with a bunch of quick links. If in doubt....I always start off with too many links, than take out as necessary.......generally wanting to run as many links as work.

When running a 34-50 and 11-32......wrapping up (16 + 21) 37 teeth difference.....You are really in long cage territory....so a med cage is certainly needed without much (if any) excess capacity. You are wrapping up as many teeth difference as a triple 30-40-50 and a 12-29 (37).

[sfscott]

So to summarize or bullet out questions:

1) SR EPS--can or cannot swap to Potenza mid cage and 11-32 with a 50/34 front

2) Older Record (ca. 2011-2013) same question.

If I can, I would do this, Happy to throw down for new chains if needed.

[Tony T]

Last year I ran an IRD 12-32 with a 50/34 and a Record short RD.
Shifts in all gears without a problem (even if I cross chain)
I only had to add one link length (new chain) from my campy 12-29 cassette set-up. (I think there would only be a problem if I had an 11-32 as there might be slack in the 11-32 crosschain gearing, so I'll stick with IRD until Potenza has a 12-32 cassette)

[oldpotatoe]

Originally Posted by woodworker

Resurrecting this thread because I am going to attempt the swap on EPS rear derailleur. In pulling off the cage from the Potenza derailleur, I note the spring tension and am wondering how I ensure the correct tension when I reinstall the spring and cage. In some of the diagrams, I note that there may be hole or two where the spring end inserts. Perhaps Old Spud or another can provide a tip on this? Any other tips? (I have looked at the Campy website and have noted that there is an upper and lower wheel and the torque requirements on the wheels.)

Thanks in advance for any input. I too will report back on how it works.

Oh, one other thing--in terms of chain length. While it seems at first blush that one might want to run a longer chain because the distance between the pulley wheels is longer, I'm inferring that this is not so because the derailleur at capacity (stretched out) doesn't really require more chain. Am I correct on this?

The reason you add a longer cage is so you have more chain so you can safely go big-big w/o killing stuff. If you can go big-big and not droopy small-small and get the top pulley off the larger cogs..you don't need either the cage or the longer chain. If you can't, chain too short-longer cage and longer chain.
As for springs-put the spring in the same hole it comes out of.

[oldpotatoe]

Originally Posted by sfscott

So to summarize or bullet out questions:

1) SR EPS--can or cannot swap to Potenza mid cage and 11-32 with a 50/34 front

2) Older Record (ca. 2011-2013) same question.

If I can, I would do this, Happy to throw down for new chains if needed.

With the caveat that I haven't done this..since you can swap a Chorus cage to Record/SR EPS and you can swap a Potenza to Chorus, either mech or EPS, I'm going to say yes to number 1 above.

And for 2, yes since the cages for 2015 SR/Record/Chorus didn't change from 2009-2014..yes.

[woodworker]

Thanks for the input. I have a campy rear and want to run the new 11-32. I have 50-34 in front, so I wanted to make sure that I don't exceed the short cage by too much as that's now 37 total. I was also thinking that I could go to something a bit smaller like 12-29 without having to swap to a shorter chain, thinking that the mid cage might be able to take up more slack. Would that be true?

BTW, I recognize that I'd need to size to the larger cog. Thanks again.