What is the deal about Campy 11-speed? What Cinqo crankset(s) actually work with 11-speed and with what chainrings? And don't give me a "it may work" with this and that. Either it works or it does not. What cranksets have been tested (both standard and/or compact) with 11-speed?

I am guessing there is some kind of patent/licensing bullshit from Campagnolo behind the fact that neither Quarq nor SRM offer power meters that can run 135bcd or Campy110/113bcd original Campy chainrings (well SRM actually do, but they don't really advertise it). So, what really is the problem?

Personally I really don't care if I mix a (for instance) SRAM Quarq crank with my otherwise campy 11-speed drivetrain, but will it work? I am not really that fond of spending $1800 on a crankset and find out it chainsucks and doesn't shift.

Funny, Quarq states: "Does not work with FSA's 130 BCD Campagnolo compatible 11spd chainrings" on all cranksets, except for the Cannondale crankset that has no information whatsoever. And the Cannondale cranks are only available in BB30, right?

11-speed 130bcd Stronglight rings apparently exist, which? Stronglight's website is not much help. And as far as compact cranks concern, there are no 11speed 3rd party rings at all that will work with the Cinqo?

I am pretty sure I could run a 10-speed SRAM, Rotor or FSA crank with an otherwise 11-speed drivetrain, heck, I've used a 10-speed Campy crank with 11-speed drivetrain without any problems. I mean the differences are just fractions of millimeters. The reason I ask was to find combinations that have been tried and tested (by users or by Quarq) that work, even if Campy or otherwise say it shouldn't work.

I got a word from competitivecyclist.com (i'm buying from them) that only Rotor3D crank will work on Campy 11 speed as of the moment.

Jim, is the thickness of the spider, ie the section that the 2 chainrings bolt to, not an issue using a 10sp crankset with 10sp chainrings & 11sp chain? I was thinking about the gap between the chainrings being now too big & the 11sp chain falling between the 2 chainrings during shifting? Or, are you saying you need an 11sp crankset using 10sp rings & 11sp chain? Sorry if I've expressed this poorly.....

Cheers, Phil

I've been running a SRAM cinqo on an otherwise 11 speed Campy group with absolutely no problem for several thousand miles. I haven't had a problem with the chain dropping between chainrings. In fact, I just tried to make it happen and couldn't get it to wedge in. You would have to do some fantastically odd shifting, pedaling and have a specially tuned deraileur to get it to happen. I think the guy that called out Leonard Zinn on the Velonews website a while back was making up a story to be an Internet sniper. But dumb stuff happens.