Originally Posted by CAMPYBOB .
shimaNO did not thin down the cassette gear thickness. They left the chainrings and cassette gears at the 10-speed thickness and did not thin the chain down. It may be possible to re-space the cassette gears to Campagnolo spacing, but will there still be gap enough for that wider shimaNO chain to run in and still shift correctly? There's .071" to delete, as a minimum to get the stack to tighten up on a standard 10-speed SRAM/shimNO cassette body. Will a Campagnolo chain run over the wider shimano cassette gears and still shift correctly? Lots of unknowns, as this stuff isn't in consumer hands yet...at least in any numbers. Like I said...good question. Paging Mr. Eng...Paging Mr. Alf Eng! Please pick up the white courtesy phone.
The following is
probably not for the CAMPAGNOLO ONLY people ...
And, my
friends-in-Vicenza are probably not going to like this ...
But, sight unseen, let me be the first to say that I do believe that an 11-speed Shimano Cassette can be indexed to-and-by an 11-speed Campagnolo EPS-or-mechanical shifter-and-derailleur!
---------------------
With the choice of the beholder being EITHER ...
- past performance is no assurance of future performance
OR
GIVEN: The width of the current 11-speed Campagnolo Cassette is posted as being
40.1mm.
There ARE unknowns, but by my reckoning, if one extrapolates from the currently available data then the probable width of an 11-speed SHIMANO Cassette will be
39.0(
+/-)mm.
WOW!
Tolerances be damned ...
I would think that a theoretical 0.1mm variance in cog spacing is probably close-enough for an 11-speed Di2 drivetrain, too!?!
Regardless, it's NOT just because I have mated Campagnolo shifters with various Shimano Cassettes, but because WHEELS MANUFACTURING clearly found that they could use a 9-speed Shimano Cassette in 10-speed Campagnolo drivetrains ...
- Yes, much to my surprise, I have even put a wheel with a 10-speed Campagnolo Chorus Cassette in a frame set up for a 9-speed Shimano Cassette without needing to make ANY adjustments!?! I didn't even need to change the high-low stops on the particular setup. While THAT was only a workstand test, if past is prologue then I don't see why it wouldn't translate to the Road.
Of course, in the past, MAVIC's neutral support was undoubtedly a wheel with a 9-speed Shimano Cassette; and possibly, is now a wheel with a 10-speed Shimano Cassette ...
And, as we now know,
alienator's current rear wheel apparently works flawlessly with a Wheels Manufacturing 10-speed Shimano-as-Campagnolo Cassette since he has, in the past, not understood what I was talking about when I declared that I thought that one reason that a 9-speed Shimano Cassette may have worked so well with 10-speed Campagnolo shifters was due to the superior ramping on the Shimano Cogs (
particularly in the past, when Campagnolo cogs were barely ramped).
Of course, it appears that Campagnolo has finally seen the benefit of ramping-and-profiling the teeth on their cogs ... nonetheless, I have to believe that Shimano's ramping may always be superior (
at least, for the foreseeable future).
Of course, individuals whose wheels currently have Campagnolo-compatible Freehub bodies need not look to the yet-to-be-available 11-speed Shimano wheels ...
And, I suppose that one could suggest that it might be possible to
borrow a Campagnolo wheel + 11-speed Campagnolo Cassette for an 11-speed Di2 drivetrain ... HMmmm. Our
friends-in-Osaka are probably not going to be happy about people choosing THAT option.
Of course, the high-low stops may need to be reset with the non-authorized wheelset.
The long-and-short is that the
wise shopper who happens to have an 11-speed Campagnolo drivetrain can probably opt for an 11-speed Shimano-compatible rear wheel + an asymmetric Shimano 11-speed chain (
regardless on the latter because Campagnolo chains just aren't worth the premium, IMO) as an alternative to a Camapgnolo-compatible rear wheel ... particularly, because Shimano Cassettes are typically available with a wider range + are often less expensive.
ALAS. Someone will have to
sponsor ME before I migrate my drivetrains to 11-speed.