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Campagnolo 11 and 12-speed parts interchangeability?

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Campagnolo 11 and 12-speed parts interchangeability?

Old 09-29-18, 05:50 PM
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Campagnolo 11 and 12-speed parts interchangeability?

Is it known whether there's any interchangeability between parts of the new 12-speed and the 11-speed groupsets. Especially/specifically, would the 12S crankset work with 11-Speed FD and chain, and shifters? Question is getting at if I wanted to do gradual upgrades of 11S to 12S system, can this be done?
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Old 09-29-18, 06:53 PM
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Originally Posted by Sy Reene View Post
Is it known whether there's any interchangeability between parts of the new 12-speed and the 11-speed groupsets. Especially/specifically, would the 12S crankset work with 11-Speed FD and chain, and shifters? Question is getting at if I wanted to do gradual upgrades of 11S to 12S system, can this be done?
I don’t see why the new 12S crankset wouldn’t work with an 11S RD or an 11S FD.

I am thinking of getting the new 12S crankset, not because I want to upgrade to 12S, I am quite happy with my current set up. But the new crankset is so darned sexy.

My mechanic says it should work fine. They are just not readily available for a reasonable price. I am waiting for the prices to come down a bit.

Have you asked your mechanic?
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Old 09-30-18, 06:54 AM
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Originally Posted by eja_ bottecchia View Post


I don’t see why the new 12S crankset wouldn’t work with an 11S RD or an 11S FD.

I am thinking of getting the new 12S crankset, not because I want to upgrade to 12S, I am quite happy with my current set up. But the new crankset is so darned sexy.

My mechanic says it should work fine. They are just not readily available for a reasonable price. I am waiting for the prices to come down a bit.

Have you asked your mechanic?
Thanks for the feedback. And I assume an 11S chain in this situation?
Haven't asked a mechanic -- 'twas a random thought that occured to me a few minutes before posting.
I don't know how much we can hope the price will drop.

I'm only considering the Record (not SR) level, and it seems to currently go for a premium of about $70 over the 11S counterpart.
SR, OTOH is crazy, with a $300 premium for 12S vs SR 11S, and the 12S SR is $400 more than 12S Record.
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Old 09-30-18, 04:18 PM
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Originally Posted by Sy Reene View Post
Thanks for the feedback. And I assume an 11S chain in this situation?
Haven't asked a mechanic -- 'twas a random thought that occured to me a few minutes before posting.
I don't know how much we can hope the price will drop.

I'm only considering the Record (not SR) level, and it seems to currently go for a premium of about $70 over the 11S counterpart.
SR, OTOH is crazy, with a $300 premium for 12S vs SR 11S, and the 12S SR is $400 more than 12S Record.
The 11 speed chain should work as well. As long as you are using the 11 speed cassette the spacing should match the 11 speed chain.

I have Record 11 speed on three of my bikes. I just couldn’t justify the added expense of going SR.

The new Record 12 speed crank is a real piece of cycling art work. A $70 premium over the Record 11 speed doesn’t seem too bad.
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Old 09-30-18, 06:30 PM
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"Darned sexy.... A work of art"..........
looks more like a blob of plastic to me.
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Old 09-30-18, 09:00 PM
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Originally Posted by trailangel View Post
"Darned sexy.... A work of art"..........
looks more like a blob of plastic to me.
yup, rear derailleur is hideous too.

Good thing I am happy with Campy 10.
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Old 10-08-18, 02:34 AM
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Originally Posted by trailangel View Post
"Darned sexy.... A work of art"..........
looks more like a blob of plastic to me.
Thank you for sharing your opinion.

Nevertheless, it remains darned sexy and a work of art.
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Old 10-08-18, 02:36 AM
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Originally Posted by Homebrew01 View Post
yup, rear derailleur is hideous too.

Good thing I am happy with Campy 10.
Good for you!
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Old 10-08-18, 12:24 PM
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Originally Posted by Sy Reene View Post
Thanks for the feedback. And I assume an 11S chain in this situation?
Haven't asked a mechanic -- 'twas a random thought that occured to me a few minutes before posting.
I don't know how much we can hope the price will drop.

I'm only considering the Record (not SR) level, and it seems to currently go for a premium of about $70 over the 11S counterpart.
SR, OTOH is crazy, with a $300 premium for 12S vs SR 11S, and the 12S SR is $400 more than 12S Record.
It all depends what you mean by "work".
The crankset will likely "work" with an otherwise 11s system but as for how good the front shift will be, that's another matter.

The chainring spacing, back of the big ring profiling and the tooth shapes and profiles have all changed, so has the physical thickness of the chainrings (as it has to match the thinner sprockets and the consequently narrower chain), so how well the FD will move the chain up or down between the rings is a moot point. Campagnolo have never tested it in this combination and what works on one frame won't necessarily work on another (unless all the geometry factors are the same) and exact positioning of the FD and the exact cable tension will also play their parts, as will chainring and sprocket combinations.

Any warranty on any part of the system will be void as well, if that matters to you.
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Old 10-08-18, 04:04 PM
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Originally Posted by gfk_velo View Post
It all depends what you mean by "work".
The crankset will likely "work" with an otherwise 11s system but as for how good the front shift will be, that's another matter.

The chainring spacing, back of the big ring profiling and the tooth shapes and profiles have all changed, so has the physical thickness of the chainrings (as it has to match the thinner sprockets and the consequently narrower chain), so how well the FD will move the chain up or down between the rings is a moot point. Campagnolo have never tested it in this combination and what works on one frame won't necessarily work on another (unless all the geometry factors are the same) and exact positioning of the FD and the exact cable tension will also play their parts, as will chainring and sprocket combinations.

Any warranty on any part of the system will be void as well, if that matters to you.
Thanks for the input. I'm not surprised of course that Campagnolo wouldn't endorse the idea, but was hoping maybe someone would have tried this.
One question though.. is it possible to put 11S chainrings on the 12S crank (are the mounting bolts the same position etc? Would this eliminate a couple of the concerns you've mentioned (tooth shapes, thickness and inside profile)?
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Old 10-09-18, 02:53 AM
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Originally Posted by Sy Reene View Post
Thanks for the input. I'm not surprised of course that Campagnolo wouldn't endorse the idea, but was hoping maybe someone would have tried this.
One question though.. is it possible to put 11S chainrings on the 12S crank (are the mounting bolts the same position etc? Would this eliminate a couple of the concerns you've mentioned (tooth shapes, thickness and inside profile)?
We've not had time to try and do anything much out-of-spec, as we are pretty busy just now training retailers to do things the *right* way, without worrying about whether doing things the wrong way works or not :-D

I'd be pretty sure that you can't fit an 11s outer ring to the SR 12v spider as even the Record 12s rings don't fit the SR 12s spider ... and they are closer (by definition) to being the right spec.

I'd guess it *may* be possible with the Record cranks but the way that the outer ring is supported on the outside may preclude it, as the extensions on the spider arms may be the wrong depth, measured axially, relative to the bolt locations - so it may not be possible to correctly tighten the chainring fixing bolts because the ring has the wrong thickness. Also, the ring spacing is partly set by where the teeth are milled on the edge of the ring and partly by the position of the chainring mounting seats so you may and may not end up with a correct ring spacing.

If it was me, if it's the crankset that you really want, I'd save my cash for now and when you can, do a hybrid system of SR 12s cranks and Record 12 everything else. That'd be the lowest cost route to a system that would shift the way that 12s is supposed to shift and since 12s was developed to have slicker, faster and more accurate shifting than 11s (our in-the-field experience is that it gets close to electronic in that respect), it would be worth it ... the front shift is especially impressive on 12s if it's set up correctly.
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