Shit fixie skidders say...

I've had omniums, and I currently run those same rotor cranks, and I can tell you the rotor are a LOT more flexible. I am going to replace the rotor arms with the new carbon arms since those are supposed to be better.

also

Climbing hills on the rotor ALDHU alloy arms has so much flex you can feel your foot is at an angle, you're forced to climb out of the saddle so that you can tilt the bike and level out your feet.