Bike Wrench Links

BB30 is a Cannondale design standard. Other companies besides Cannondale make BB30 cranksets. Campagnolo took their previous threaded cup designed crank arms and adapted them to work in a BB30. The vertical leverage that takes place on a real BB30 is within the bottom bracket shell where the crank spindle meets the bearings. A Campagnolo crankset which has taken a short cut by eliminating the need to re-tool for the new crank standard and chose to adapt their crank to work with the BB30. This places the bearings outside the frame which places the vertical leverage out further than true BB30 and without the support of the bottom bracket shell to counteract or resist movement. I own 2 BB30 bikes with BB30 cranks. One is carbon and one is aluminum. Neither bike makes a noise. I field several calls as a representative for a frame manufacturer which uses BB30 in their bikes. If the call begins with someone complaining about creaks I immediately assume Campagnolo and ask them which model of Campagnolo they are using. I have yet to be wrong. I am not trying to enrage the Campagnolo lovers, but simply stating the facts as I know them. I would prefer that Campagnolo address the problem so that I did not have to continually talk people out of their view which they hold tightly to that something must be wrong with the frame.
 Additonally Campagnolo uses BB Cups.  True BB30 does not use cups.  There are adapters to make Campagnolo work with BB30.  Adapters and Cups are not part of the BB30 design.   Adapters and Cups are attempts to make the Campagnolo component work with the BB30 standard.  Adapt at your own risk.

BB30

Campagnolo Adapter Cups

Wheels Manufacturing Adapter