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[beeatnik]

yes

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[R3awak3n]

that chart gives me a headache.


for all its worth the crankset should work fine with all 11 speed, it is probably even fine with 10 speed.

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[FlashUNC]

Reality is its fine. My guess is Campy has run into some issue with performance that's led them to say it doens't meet whatever standard they define. Something between the RD and those compact/semi-compact options makes it no bueno in their mind.

But reality? It'll shift fine.

[oldpotatoe]

Is a Gen. 1 (white graphics) Campagnolo SR11 gruppo (shifters, FD, RD, cassette; non-EPS) perfectly compatible with Campagnolo 2015/16 4-arm 11-S cranksets?

Thanks.

yes, as has been said.

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[oldpotatoe]

Thanks much, perfect.

Any difference between Athena and Record chainrings?

Threaded Record rings(small ring threaded), smaller hole for bolts. Not threaded, the same dimensions.

[djdj]

Is a Gen. 1 (white graphics) Campagnolo SR11 gruppo (shifters, FD, RD, cassette; non-EPS) perfectly compatible with Campagnolo 2015/16 4-arm 11-S cranksets?

Thanks.

White group with red crank? Absolutely not!:beer:

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[Black Dog]

What about the quality? Different manufacturing, pins, etc?


kokies "white-out" SR 11 decals to the rescue! :beer:


Actually, this fellow makes a pretty reasoned argument against the new 4-arm cranksets, imo.

NEW Chorus vs old Record 11s crankset - why I WOULDN'T BUY the new stuff. Chainset comparison. (https://www.youtube.com/watch?v=F0tzGKiqRfc)
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No difference in quality, durability, and performance at all.

[weisan]

Cadence pal, are you bored out of your minds because of this cold? :D

[YesNdeed]

I've been running a 2015 Record compact crank (4 arm) with 2011 Super Record everything else. Works great!

[enr1co]

You could run any brand 11 sp rings/crank if you had too.

[beeatnik]

But, it also states that a '14 rd is compatible with a '15 crankset (53/39), but is NOT compatible with a '15 crankset (52/36 or 50/34). How can that be, since one of the selling points of the '15 crankset is complete chainring interchangeability. Therefore, either all chainrings should be compatible with a '14 rd or else all not, right? :confused:

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Cadence, that chart refers to the compatibility of the "new" 11-29 cassette with the 2009-2014 RD. According to Campagnolo, you can run that cassette w/ a non-2015 RD only if you use the 2015 53/39.

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[Jeff N.]

Is a Gen. 1 (white graphics) Campagnolo SR11 gruppo (shifters, FD, RD, cassette; non-EPS) perfectly compatible with Campagnolo 2015/16 4-arm 11-S cranksets?

Thanks.Yeppers!

[choke]

Thanks. The Athena are slightly less $, if I can just figure out the bolt hole thing now.As I understand it, the bolt holes in the cranks which take the threaded rings are smaller than the holes in 'normal' cranks, and only way to make the non-threaded rings work is to enlarge the holes in the cranks. But I haven't handled the new style so I may be wrong....

[gfk_velo]

What about the quality? Different manufacturing, pins, etc?


kokies "white-out" SR 11 decals to the rescue! :beer:


Actually, this fellow makes a pretty reasoned argument against the new 4-arm cranksets, imo.

NEW Chorus vs old Record 11s crankset - why I WOULDN'T BUY the new stuff. Chainset comparison. (https://www.youtube.com/watch?v=F0tzGKiqRfc)
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He's totally misunderstood the reason for a four arm design. He's assumed that "stiffer" equates to better power transfer - actually the gains in stiffness in the 4 arm design are predominantly in the stiffness of the outer chainring in the shift zone. Hence the position of the support arms. Hence the wider spacing of the outer chainring ring bolts and using 4 at a smaller PCD for the inner, etc, etc.

You can't compare Chorus to Record for weight as the cranks are a different lay-up and the LH Record crank is hollow, whereas Chorus is solid.

The shifting system / pins is again misunderstood - both rings have in effect the same shift zones. On an even number inner chainring, you use 4 upshift pins on the outer. On an odd number of teeth you use 8 upshift pins - because the pin must always catch an outer link to bring it into the ramp on the inside of the ring.

Reason? On an odd number inner ring, those outer links will fall on alternate teeth rev by rev. On an even number inner ring, the outer links fall on the same teeth each time. Hence 4 pins on, say, a 34 or 36 inner, 8 on a 39 inner.

We know from testing shifting under torque, that the four arm is better in both directions than the five ... it shifts better under load and that is what the market is currently demanding, rightly or wrongly. The difference is small but when you have end users trying to shift 34/50 under full gas when on the biggest sprocket, believe me, every little helps.

Oddly enough, when you are investing many 100s of 1000s of Euro on the tooling to make a new groupset, you don't design on the back of an envelope ...

The differences in the compatibilities arise because the actual derailleur cage in the 2015 design, and how the cage helps pick up and nudge down the chain is different - so for the system to perform in a fashion that can be reproduced time after time, across the full range of crankset sizes, seat tube to chainstay angles, etc., the way that Campagnolo specify, yes, you need in most cases to match front mech to chainring spec. There is one combination where using the older FD actually gives an in-spec performance across Campag's frame spec range with the new rings as does the 2015 FD - in other cases with the new shaping on the back of the chainrings and the slightly revised spacing between the rings, the new FD is needed to hit the metrics Campag specify.

Would you notice when riding? Probably not in many if not most cases. Will some riders tell the difference? Probably yes, although they'll often be the least sensitive riders because these kinds of incremental changes are being put into place to help riders that in an earlier age we might have accused of abusing their equipment ... Those guys will notice that in a properly matched & set-up system, the chain goes small ring to big, big ring to small, with less chain drops when they are shifting in what might politely be called a "sub-optimal" fashion.

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[oldpotatoe]

I just spoke with Campa NA. They were very helpful, and explained it like this:
2009/11 11-S chainrings have 2 bolts (like the old style male/female).
2012/14 11-S chainrings have 1 bolt (threaded).

Either style will work perfectly on 2009/14 ("5-arm") 11-S cranksets, as long as one uses the matched ring pair + appropriate cr bolts.

They did not mention drilling out the crankarm spider holes, not even a peep. ;)

Don't drill anything, just use 'matched' CR bolts to rings.

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