Originally Posted by
mukman
I've seen plenty of Omniums using FSA, Sugino Zen, Blackspire, and Rotor chainrings. What am I missing here?
Using double chainring bolts with single chainrings means that there will be a gap. Even if that gap is 1mm, it's enough for the chainring to rattle around.
The chainrings you saw were likely using different chainring bolts than what came with the cranks.