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[cadence90]

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[FlashUNC]

Yes, 10 and 11 sod UT cranks are totally interchangeable. Only thing that changed was the rings themselves, not the crank arms.

So you can leave the cups in and be fine.

[Cicli]

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[cadence90]

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[Cicli]

He meant speed not sod. I think.
You can use an 11 speed crank with 10 speed drivetrain no problem.

[FlashUNC]

Typo, meant spd.

Shifting will be fine.

[cadence90]

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[oldpotatoe]

OK, thanks much.

I was hoping Flash wasn't saying "sod all...". :)

What was said, 11s crank works fine with otherwise 10s system and Fulcrum CR BCD same as Campagnolo, both full size and compact.

[cadence90]

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[ultraman6970]

You can even run c record 8 speed cranksets with 10 and 11 speed stuff.

Cadence probably they are talking about chain compatibility, the thing is this, they need to put crap like that in the descriptions so the shimano guys buys them.

[thirdgenbird]

Thanks opie. That I understood.

What I'm still not clear on are the Fulcrum. If the Fulcrum CT BCD is Campa CT (4x 110mm + 1x 113mm) compatible, how is it then also compatible with Shimano/OPFB*? What am I missing?

*Old Potatoe's Fave Brand

The chain and derailleur doesn't car about bcd. Shimano compatible just means the chainring center to center spec is shimano compatible. A Campagnolo crankset works fine with SRAM and shimano. The fulcrum brand just makes some people feel better about the mix.

[cadence90]

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[cadence90]

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[beeatnik]

One other question on this.

Assuming levers, FD, RD, and chainrings are all 10s, can one run either a 10s or an 11s cassette?

If yes, does an 11s cassette with 10s chainring use a 10s or 11s chain?

Thanks much.

Match the chain to the shifters, rd and cassette. 10v shifters, RD and cassette require a 10s chain. 11v shifters, RD and cassette, 11s chain.

[pbarry]

You can use 11s derailleurs with 10s shifters and cassettes, but not the other way around.

OP will chime in early tomorrow and shed more light on the subject. :hello:

[cadence90]

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[ultraman6970]

Cadence. you can put an 11 speed chain with a 10 speed drive train if you want... you can put a 10 speed chain with an 11 speed drivetrain, will be tad noisy but will work (in case you have no 11 chains moving around at the moment of built the bike)

You cant make a 10 speed shifters to shift right with an 11 speed cassette obviously. What you can do is to use a pulley to change the ratio in a 11 speed drive train to work with 10 speed cassette tho, works just fine using a jtek pulley.

10 speed shifters and 11 speed RD will work from what I heard, obviously shifting 10 speed cassettes.

2013 and previous 11 speed drivetrains work fine with any FD, no idea about 2014 and up because campagnolo is doing some weird crap now... 2014 and up RD wont work with 2013 and previous years 11 speed drivetrains from what I heard.

[cadence90]

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[oldpotatoe]

Cadence. you can put an 11 speed chain with a 10 speed drive train if you want... you can put a 10 speed chain with an 11 speed drivetrain, will be tad noisy but will work (in case you have no 11 chains moving around at the moment of built the bike)

You cant make a 10 speed shifters to shift right with an 11 speed cassette obviously. What you can do is to use a pulley to change the ratio in a 11 speed drive train to work with 10 speed cassette tho, works just fine using a jtek pulley.

10 speed shifters and 11 speed RD will work from what I heard, obviously shifting 10 speed cassettes.

2013 and previous 11 speed drivetrains work fine with any FD, no idea about 2014 and up because campagnolo is doing some weird crap now... 2014 and up RD wont work with 2013 and previous years 11 speed drivetrains from what I heard.

-Match the chain to the cogset..10s-10s..no reason to use a thinner 11s chain(and more expensive) on a 10s system. It 'may' work but a 10s chain will work as designed.

-2015 they changed the take up spool in the RH lever and redesigned the rear der. You can change the spools around to match the rear der. Any front der will work with Campagnolo UltraShift and also older ERGO. I hope you mentioned somewhere the 'weird crap' shimano did when they went to 11s, making all their previous 8/9/10s derailleurs and rear hubs/wheel obsolete. Just to be fair.

-a 11s rear der will work fine with 10s shifters, 2014 and older. Overshifts a wee bit but centers well. A 2008 and older 10s rear der doesn't shift 11s well. need to do an alternative cable mount gig.

[cadence90]

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[oldpotatoe]

[QUOTE=cadence90;1945260]Thanks much, Pete.

This jives, and in any case I've had enough of these compatibility numbers bombarding my brain and am going simple: 10s across the board.

I have absolutely no idea what this "shimano" stuff you mention is...nope, never heard of it, no clue, not any idea at all (best Jon Lovitz/SNL voice).

However, I'm scouring my PMs and I am still not seeing that beautiful NIB Campagnolo Chorus/Centaur 10s medium cage RD that you certainly have somewhere in your oldCampotatoe cellar.... :)


Sorry, don't and you don't really need a mid cage rear der for the setup you are talking about

[cadence90]

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[oldpotatoe]

No?
50/34 + 13/29 is OK on short cage?
That's 32 CW, and I thought 31 CW was the absolute max on short-cage Campa 10s RDs.

Max I have used is 50/34 + 11/23 or 12/25, so I have no experience with taller than 25.

As soon as the 13-29 came out we tried on a demo bike and it worked just fine, as long as the chain is proper length..not too short, not too long. Then same for 12-30.

[thirdgenbird]

There are a lot of success stories with that combination.its sorta dependent on rd hanger but it sounds like it's rare that it doesn't work.

I am currently building a bike with the same setup and went with a medium cage just to cover myself. I figure if anything, it will allow me to swap in a 11t cassette without issue.

[ultraman6970]

I had a 29 cassette moving around and a short caged rd worked just fine the couple of times i tested it. I was able to tell I was at the limit tho.