If you want a Rotor ring because of the high quality machining and anodization but are not fond of the ovalized profile, this NO-Q Aero chainring is for you. It has the same shifting and finish of the Q-Rings except it is completely round. Profiled teeth and machined slope pick-ups aid shifting. Durable finish adds longevity. Works with all 11 and 10 speed drivetrains and mounts to most 110mm or 130mm BCD cranksets.