It's not tight at all, no rubbing or any noises. As it is now, it's the metal of the crank arm pushing against the plastic spacer before the bearing, with the collar its plastic onto plastic, as long as they both bring it to the same tension, tightness it should be the same?
Can't find ally one anywhere only the composite one.
I need 2 spacers drive side for chairing to clear frame, I have always used 2 drive side and never had issue before.
Where can you get alloy bb30 axle spacers?