ROTOR Round Rings BCD110x4 chainrings compatible with all ROTOR cranks using BCD 110×4 spider or INspider power meter.

In addition, these chainrings are also compatible with Shimano® Ultegra® FC-8100, Ultegra® FC-8000, Dura-Ace® FC-9200 and Dura-Ace® FC-9100 cranks cranks, offering fast and precise shifting while maintaining a very low weight. Aero-chainrings are not compatible with the 12-speed Shimano® Powermeter cranks. ( R8100p and R9200p )