Rotor Q-Rings Direct Mount Oval Double Chainring - 53/39t - OCP – CYKOM
ROTOR Bike Components - Now you can assemble your Shimano® Dura-Ace R9100 or Shimano® Ultegra R8000 cranks with the new ROTOR Q RINGS BCD110X4 and enjoy all the advantages of oval chainrings. #
Rotor QRings red (34,36,38,39, 50,52 or 53T) - Velo-Perso.com
Rotor 3D+ Power Meter Crankset w/ Oval Q-Rings 53-39 11 spd 130 BCD 172.5 mm ANT | SidelineSwap
SRM power meter with Rotor Q rings - 53/39 - 130BCD - 175mm cranks | eBay