http://www.cyclingnews.com/tech.php?...004/news/apr30
"However, Campagnolo's CT cranks aren't 110mm. Campagnolo wanted to change the design of its carbon crank as little as possible, so the bolt placement on the crank arm is in a different position from the other four, which means only Campagnolo's own rings will fit."

You wouldn't expect Campy to follow the standard, would you?

Dawg