Rotor Q Ring 52 teeth.

BCD.

110x4

12 Speed.

Oval.

Oval chainrings compatible with Rotor's new lightweight ALDHU crankset, as well as Shimano® Dura-Ace® FC-R9200-P, FC-R9200, FC-R9100 and Ultegra® FC-R8100, FC-R8000 cranksets.