Originally Posted by
TheBackmarker
No difference in geometry. In a hard crash Carbon can break. Aluminum may bend, but you'll finish your race. Mostly it's just an appearance option, though.
That's what I was thinking .but I'm going to be running the carbon for awhile since i already have back ups in carbon ..I'm thinking ill keep the plastic nuts to have a give point when i crash

those are cheap and easy to replace ..